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]: 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


[Q]: A cut to the skin is treated with antiseptic first to avoid  
 (A) an immune response. (B) a bacterial infection. (C) bruising of tissues. (D) an allergic reaction.
[A]: B


[Q]: Antarctica is a continent at Earth's south pole. Fossils of tropical fern plants were discovered in Antarctica even though these plants do not grow there today. Which conclusion does the fossil evidence best support?  
 (A) Millions of years ago, Antarctica was in a warmer location on Earth. (B) Recently, a natural disaster killed all of the fern plants in Antarctica. (C) Recently, birds stopped carrying the seeds of fern plants to Antarctica. (D) Millions of years ago, Earth's south pole was much colder than it is today.
[A]:
A