Determine whether Rolle's Theorem can be applied to f on the closed interval

Question

[a, b].
(Select all that apply.)
f(x) = x^2/3 − 2, [−8, 8]
1) Yes, Rolle's Theorem can be applied.
2)No, because f is not continuous on the closed interval [a, b].
3)No, because f is not differentiable in the open interval (a, b).
4)No, because f(a) ≠ f(b).

Answer 1

the last three answers are all false.