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]: A scientist studies the remains of two extinct animals to learn more about how they lived. She determines that one animal was a carnivore and the other was an herbivore. Which of the following did the scientist most likely compare to make this conclusion?
(A) the number of bones in the animals (B) the size of the animals (C) the body covering of the animals (D) the skull of the animals
[A]: D

[Q]: Animals get energy for growth and repair from
(A) soil (B) food (C) water (D) air
[A]: B

[Q]: Canadian physician Sir William Osler once said, "In Science the credit goes to the man who convinces the world, not to the man to whom the idea first occurred." How does this quote apply to scientific knowledge?
(A) Famous scientists have the best ideas. (B) Ideas must be communicated to the public (C) In order to be important, ideas must be believable. (D) The results are less important than the ideas in an experiment.
[A]:
B