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: When light is bounced off a mirror, the light is  
 (A) reflected. (B) refracted. (C) absorbed. (D) diffracted.

A: A
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Q: Cells come in two basic types, prokaryotic and eukaryotic. Which cell structure is found in both prokaryotic and eukaryotic cells?  
 (A) vacuole (B) nucleoid (C) mitochondrion (D) cytoplasm

A: D
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Q: Which is the correct order in the process of sedimentary rock formation?  
 (A) compaction, erosion, cementation, deposition (B) compaction, weathering, erosion, cementation (C) weathering, deposition, cementation, burial (D) weathering, erosion, deposition, compaction

A:
D
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