How many different payment methods are there?
CREATE TABLE products (
    product_id number,
    product_name text,
    product_price number,
    product_description text
)

CREATE TABLE order_deliveries (
    location_code text,
    actual_order_id number,
    delivery_status_code text,
    driver_employee_id number,
    truck_id number,
    delivery_date time
)

CREATE TABLE actual_order_products (
    actual_order_id number,
    product_id number
)

CREATE TABLE addresses (
    address_id number,
    address_details text,
    city text,
    zip_postcode text,
    state_province_county text,
    country text
)

CREATE TABLE actual_orders (
    actual_order_id number,
    order_status_code text,
    regular_order_id number,
    actual_order_date time
)

CREATE TABLE delivery_route_locations (
    location_code text,
    route_id number,
    location_address_id number,
    location_name text
)

CREATE TABLE trucks (
    truck_id number,
    truck_licence_number text,
    truck_details text
)

CREATE TABLE regular_order_products (
    regular_order_id number,
    product_id number
)

CREATE TABLE delivery_routes (
    route_id number,
    route_name text,
    other_route_details text
)

CREATE TABLE employees (
    employee_id number,
    employee_address_id number,
    employee_name text,
    employee_phone text
)

CREATE TABLE customer_addresses (
    customer_id number,
    address_id number,
    date_from time,
    address_type text,
    date_to time
)

CREATE TABLE regular_orders (
    regular_order_id number,
    distributer_id number
)

CREATE TABLE customers (
    customer_id number,
    payment_method text,
    customer_name text,
    customer_phone text,
    customer_email text,
    date_became_customer time
)
SELECT COUNT(DISTINCT payment_method) FROM customers
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many different payment methods are there? ### Input: CREATE TABLE products (
    product_id number,
    product_name text,
    product_price number,
    product_description text
)

CREATE TABLE order_deliveries (
    location_code text,
    actual_order_id number,
    delivery_status_code text,
    driver_employee_id number,
    truck_id number,
    delivery_date time
)

CREATE TABLE actual_order_products (
    actual_order_id number,
    product_id number
)

CREATE TABLE addresses (
    address_id number,
    address_details text,
    city text,
    zip_postcode text,
    state_province_county text,
    country text
)

CREATE TABLE actual_orders (
    actual_order_id number,
    order_status_code text,
    regular_order_id number,
    actual_order_date time
)

CREATE TABLE delivery_route_locations (
    location_code text,
    route_id number,
    location_address_id number,
    location_name text
)

CREATE TABLE trucks (
    truck_id number,
    truck_licence_number text,
    truck_details text
)

CREATE TABLE regular_order_products (
    regular_order_id number,
    product_id number
)

CREATE TABLE delivery_routes (
    route_id number,
    route_name text,
    other_route_details text
)

CREATE TABLE employees (
    employee_id number,
    employee_address_id number,
    employee_name text,
    employee_phone text
)

CREATE TABLE customer_addresses (
    customer_id number,
    address_id number,
    date_from time,
    address_type text,
    date_to time
)

CREATE TABLE regular_orders (
    regular_order_id number,
    distributer_id number
)

CREATE TABLE customers (
    customer_id number,
    payment_method text,
    customer_name text,
    customer_phone text,
    customer_email text,
    date_became_customer time
) ### Response: SELECT COUNT(DISTINCT payment_method) FROM customers