solve this question:

A) f'ix) has a slope of zero at x=-1.2 and x= 1.2 B} f"(x} is positive from x = -2 to x= D and from x=2 to positive infinitv C) x) is an increasing function from x = -2 to x= D and from x=2 to positive infinity 0 A, B, and C are correct 0 A and B are correct 0 OnlvA is correct 0 A and C are correct