If your science teacher says B, it’s probably because water has a negative and positive end, heat is just a form of energy, as other atoms can’t leave (they’re attracted to the ends) they are being insulated; but notice that ice will melt into gas (where atoms have tons of space) for other atoms to escape. Hence ice and gas aren’t ideal. (Air is a gas here.) It’s not a 100% but hopefully it helps with some kind of analogy.
A) Take a very spicy chilli and chew it it will clear up b) Drink hot water c) Take medicine d) Exercise for a long time till it makes you drench it helps