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.
--------
Question: When light is bounced off a mirror, the light is  
 (A) reflected. (B) refracted. (C) absorbed. (D) diffracted.

Answer: A


Question: Which plant is grown for food?  
 (A) Rice (B) Tobacco (C) Orchid (D) Cotton

Answer: A


Question: Some cells, such as human nerve and muscle cells, contain many more mitochondria than do other cells, such as skin cells. Why do some cells have more mitochondria than others?  
 (A) The cells use more energy. (B) The cells store more nutrients. (C) The cells degrade more proteins. (D) The cells divide more frequently.

Answer:
A