I'm not asking you to eat "health food" which is more expensive, but non-meat food is cheaper than meat food.

Pizza bites might not be health food, but they aren't MORE expensive when they DONT have pepperoni in them.

So B is a load of bullocks.
Also, as a college student you don't have a dinning hall or some such? I'm shocked if your school doesn't have a dinning hall and I cannot imagine that they don't have options for any vegetarians at your school.