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]: Which object works best when reflecting light?
(A) mirror (B) camera (C) binoculars (D) eyeglasses
[A]: A

[Q]: Which statement about plant and animals cells is true?
(A) Both have a cell wall to give them support. (B) Both have a large vacuole to store water. (C) Both use mitochondria to produce energy. (D) Both use chloroplasts to store energy.
[A]: C

[Q]: Florida has a large supply of phosphate that ancient seas deposited millions of years ago. The phosphate contains the remains of animals that were deposited in layers on the sea floor. Which type of rock did the phosphate become?
(A) intrusive igneous (B) extrusive igneous (C) clastic sedimentary (D) organic sedimentary
[A]:
D