Which is the only correctly stated proverb?

Question

a) A penny saved is not much.
b) Don't bite the hand that looks dirty.
c) It;s always darkest before the dawn.
d) You can't teach an old dog new math.
e) Where there;s smoke there's polluton.

Answer 1

c)

Answer 2

c)

The rest are just variations on other terms like this one

Answer 3

The answer is c , I hope that helps you.

Answer 4

c

Answer 5

c