TASK DEFINITION: You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
PROBLEM: Which animal eats only plants?  
 (A) Cat (B) Dog (C) Lion (D) Rabbit

SOLUTION: D

PROBLEM: Wave energy from the ocean can be harnessed to power generators to make electricity. Energy from ocean tides can also be used to make electricity. How would you categorize these two sources of energy?  
 (A) Both are renewable. (B) Both are nonrenewable. (C) Wave energy is nonrenewable. Tidal energy is renewable. (D) Wave energy is renewable. Tidal energy is nonrenewable.

SOLUTION: A

PROBLEM: Which of the following is the best example of a custom-made product?  
 (A) graphing calculator (B) light bulb (C) needle nose pliers (D) artificial leg

SOLUTION:
D