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 shows the correct order for the central dogma of molecular biology?  
 (A) DNA to protein to RNA (B) RNA to DNA to protein (C) protein to DNA to RNA (D) DNA to RNA to protein
answer:
D


question:
Which substance do all living things require to survive?  
 (A) blood (B) water (C) carbon dioxide (D) organic soil
answer:
B


question:
The skin of a chameleon can change colors to help it blend with its surroundings. How would this adaptation most likely help a chameleon survive?  
 (A) by scaring predators away from the chameleon (B) by attracting prey animals to the chameleon (C) by sending a signal to other chameleons (D) by helping the chameleon hide from its predators
answer:

D