Teacher: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.
Teacher: Now, understand the problem? Solve this instance: What is the effect of absorption of infrared light by human skin?
(A) sunburn on the skin surface (B) disinfection of the skin tissues (C) feeling of warmth on the skin (D) immediate death of skin cells
Student:
C