What grades are required for the prerequisite classes for the Ph.D. in Mathematics?
You need to achieve at least a B in each prerequisite class
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What grades are required for the prerequisite classes for the Ph.D. in Mathematics?

### Input: Not applicable

### Response:
You need to achieve at least a B in each prerequisite class<|im_end|>