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

### Instruction:
Name the total number of frequency Mhz with class of d and call sign of k201bm and ERP W less than 74

### Inputs:
table_name: table, columns: ['Call sign', 'Frequency MHz', 'City of license', 'ERP W', 'Class', 'FCC info']

### Response:
SELECT COUNT Frequency MHz FROM table WHERE Class = d AND Call sign = k201bm AND ERP W < 74