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]: What procedure should be performed after any handling of a plant sample in a lab?  
 (A) applying disinfectant to the counters (B) throwing away plant material in the trash (C) washing hands with an antibacterial soap (D) placing hands under an ultraviolet light
[A]: C


[Q]: Which of these occurs if myosin fails to bind to actin during muscle contraction?  
 (A) The muscle cells will lose ATP. (B) The muscle cells will remain relaxed. (C) The muscle cells will produce lactic acid. (D) The muscle cells will lose calcium ions.
[A]: B


[Q]: Which source of information will most likely provide a student with the most accurate information about the landforms, natural resources, climate, and precipitation of Nevada?  
 (A) the meteorologist from a local television station (B) an Internet article written by university students (C) the Current Events section from a daily newspaper (D) an Internet website developed by the U.S. Geological Survey
[A]:
D