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:
Which of these would help to prevent infections from occurring in small cuts and scrapes?  
 (A) apply a cold ice pack (B) raise the injured area (C) apply pressure to stop bleeding (D) wash the area with warm, soapy water
answer:
D


question:
Which step will most likely ensure that the results of an investigation are valid?  
 (A) using a computer to graph results (B) verifying that results match the original hypothesis (C) comparing the results with those of other scientists (D) eliminating any results that appear to be abnormal
answer:
C


question:
What is one way people are helping the environment?  
 (A) They are planting trees to replace the ones that are cut. (B) They are building more roads so more people can see natural areas. (C) They are building more dumps to hold the trash we create. (D) They are using their cars more to get to places faster.
answer:

A