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

### Instruction:
What are the mhz when the profile is 8b?

### Inputs:
table_name: table, columns: ['Profile', 'Bandwidth ( MHz )', 'Number of carriers', 'Carrier bandwidth (kHz)', 'Power ( dBm )', 'Max. downstream throughput ( Mbit/s )']

### Response:
SELECT Bandwidth ( MHz ) FROM table WHERE Profile = 8b