Question

LOOK FOR AND FIX COMMA USAGE!! TO THIS:
Students whose parents are in the military often move around a lot.

Answer 1

Personally, I don't think there's any comma required. Though, if you absolutely wanted to use commas, you could use:

Students, whose parents are in the military, often move around a lot.

PERSONALLY: I think it's more correct without the commas.

Answer 2

Students, whose parents are in the military, often move around a lot.