Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_15608800_2 (wheel_arrangement VARCHAR, class VARCHAR)
### Question:
Name the number of wheel arrangement when class is d14
### Answer:
SELECT COUNT(wheel_arrangement) FROM table_15608800_2 WHERE class = "D14"