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: How is xylem similar to phloem in a plant?  
 (A) They both take in water from the soil. (B) They both transport materials through the plant. (C) They both make sugar in the leaves. (D) They both store waste products in the plant cells.

Answer: B


Question: Which of these technologies helps a power company use renewable energy for the production of electricity?  
 (A) hydroelectric power (B) nuclear power plants (C) natural gas generators (D) coal-fired power plants

Answer: A


Question: Which of the following is the most important safety practice when using a rock hammer on a geology field trip?  
 (A) wear gloves while breaking rocks (B) wear goggles while breaking rocks (C) have a bucket of sand in case of sparks (D) have a clean eye-wash station available

Answer:
B