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.

Q: In one area, a large source of prey for eagles is rabbits. If the number of rabbits suddenly decreases, what effect will it most likely have on the eagles?  
 (A) Their numbers will increase. (B) Their numbers will decrease. (C) They will adapt new behaviors. (D) They will migrate to new locations.

A: B
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Q: Which of these senses lets Dora know when a skunk has been close to her house?  
 (A) Taste (B) Touch (C) Smell (D) Hearing

A: C
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Q: The cilia in the respiratory system are responsible for preventing dirt and mucus from entering the bronchial tubes and lungs. If the cilia are damaged, the person's bronchial tubes and lungs are most likely to  
 (A) close to prevent further damage. (B) stop producing mucus. (C) become clogged. (D) become efficient.

A:
C
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