Please, I really need help understanding this one Decide whether Rolle's theorem can be applied to f(x) = x2 + 2x − 1 on the interval [–3, 1]. If Rolle's theorem can be applied, find all value(s) of c in the interval such that f '(c) = 0.

Rolle's theorem can be applied; c = –3, 1
Rolle's theorem can be applied; c = –1
Rolle's theorem cannot be applied because f '(c) ≠ 0
Rolle's theorem cannot be applied because f(0) ≠ f(3)