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:
An enclosed 20 mL metal cylinder was filled with a gas sample at room temperature. The sample then was transferred to an empty 40 mL enclosed container, also at room temperature. After being transferred, the volume of the gas was
(A) 10 mL. (B) 20 mL. (C) 30 mL. (D) 40 mL.
answer:
D

question:
When would the highest tides occur along the Texas coast?
(A) at sunrise (B) at sunset (C) during a full moon (D) during a half moon
answer:
C

question:
A decomposer is an organism that
(A) hunts and eats animals (B) migrates for the winter (C) breaks down dead plants and animals (D) uses water and sunlight to make food
answer:
C