instruction:
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.
question:
Sal is looking at a map of Massachusetts. He has measured the distance, in inches, from Boston to Salem on the map. He wants to know how many actual miles the inches represent. What feature of the map should he look for?  
 (A) key (B) scale (C) legend (D) compass
answer:
B


question:
Why would animals most likely have to leave an area during a drought?  
 (A) to find mates (B) to find shelter (C) to escape predators (D) to find water and food
answer:
D


question:
A decomposer is an organism that  
 (A) preys on other animals (B) eats only plants (C) recycles nutrients (D) uses sunlight to make food
answer:

C