B. Select and write, on the provided blank, the letter that corresponds to the derivative of the given function from the loop of possible answers below. (2 points each) A 2 4x-5842 B. " = 28x* + 3e- C. " = 36x - 18x + 2x dx D. E. = 12x + 12x2 F. #2 = 3X dr G. H. Tins I. = 3 cosx - 3sinx - 4 sec' x K. = V2x+ V6x L. 1 = 1-9Vx + 18x C. Solve the following real-life problems involving optimization. Show your clear and complete solutions with an illustration on the space provided. A final answer with no clear and complete solutions will be considered incorrect, Write your conclusion in a complete sentence. 1. An island is at point A, 4 km offshore from the nearest point B on a straight beach, A woman on the island wishes to go to a point C, 6 km down the beach from B. She can go by rowboat at 5 km/hr to a point P between B and C and then walk at 8 km/hr along a straight path from P to C. Where should point P be located so the woman can go to point C with the least possible time? (10 points) Solution (with Illustration): Conclusion