Explain why Rolle's theorem does not apply to the function even though there exist a and b such thatf(a)= f(b).(Select all that apply.)f(x)= cotx2,[,5]There are points on the interval (a, b) where f is not differentiable.There are points on the interval [a, b] where f is not continuous.f(a) does not equal f(b) for all possible values of a and b in the interval [,5].f(a) does not equal f(b) for any values in the interval [,5].None of these.