If y = f(x) is continuous on the interval [a, b] max y occurs at a point c, and f'(c) ≠ 0, f'(c) exists than:

c is equal to a but not b c is equal to b but not a c is equal to a or b c is equal to mid value of a and b

c is equal to a or b

The correct answer is Option (3) → c is equal to a or b