Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Name the number of wheel arrangement when class is d14

### Inputs:
table_name: table, columns: ['Class', 'Wheel Arrangement', 'Railway', 'Number at Doncaster', 'Number at Pyewipe', 'Number at March']

### Response:
SELECT COUNT Wheel Arrangement FROM table WHERE Class = D14