TASK DEFINITION: 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.
PROBLEM: What tool would be used to examine a fingerprint?  
 (A) a graduated cylinder (B) a hand lens (C) a pair of goggles (D) a thermometer

SOLUTION: B

PROBLEM: What is the main function of red blood cells?  
 (A) To fight disease in the body (B) To carry oxygen to all parts of the body (C) To remove carbon monoxide from all parts of the body (D) To produce materials which cause the blood to clot.

SOLUTION: B

PROBLEM: Some natural disasters can have a large effect on the global climate. Which type of natural disaster would produce the greatest decrease in solar radiation reaching the surface of Earth for the longest period of time?  
 (A) a giant tsunami (B) a strong earthquake (C) a powerful hurricane (D) a large volcanic eruption

SOLUTION:
D