Question 3 3 pts (Multiple Choice) If the function f(r) is decreasing and concave up at x = 2 then: (a) f'(2) and f"(2) are both positive (b) f'(2) and f"(2) are both negative (c) f'(2) is positive and f"(2) is negative (d) f'(2) is negative and f"(2) is positive (e) We can't be sure about the signs of f'(2) and f"(2) O A hs O B OC OD OE