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.

Example Input: The yellow-throated longclaw is a bird that lives on the dry savanna of Africa. It looks almost exactly like another bird, the western meadowlark of North America. Although the birds look very similar, they are not even in the same taxonomic family. Scientists think the birds look alike because the two species developed under similar environmental pressures, even though they developed thousands of miles apart. Which process does their development demonstrate?
(A) sexual selection (B) disruptive selection (C) divergent evolution (D) convergent evolution
Example Output: D

Example Input: In which case does a physical change occur?
(A) Ice melts into water. (B) Bread burns in a toaster. (C) A cake bakes in an oven. (D) Two chemicals form a new substance.
Example Output: A

Example Input: After Audrey drinks a glass of juice, digestive processes deliver glucose to the bloodstream. From the bloodstream, glucose molecules enter the cell. In order for glucose molecules to be used by the cell, glucose-specific enzymes must do what?
(A) bind glucose molecules to each other (B) evaluate the energy content of the glucose (C) catalyze a chemical reaction with the glucose (D) transport the glucose molecules to the nucleus
Example Output:
C