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:
A red flowered plant (RR) is crossed with a white flowered plant (WW) and produces plants with pink flowers (RW). If two pink flowered plants are crossed, what color offspring could be produced?  
 (A) red, white, and pink (B) red and white (C) pink and red (D) pink and white
answer:
A


question:
One important use of coal is to produce energy for homes. Coal can be burned and converted to  
 (A) wind energy. (B) nuclear energy. (C) electrical energy. (D) solar energy.
answer:
C


question:
When sound waves with large amplitude are compared to sound waves with small amplitude, which of the following is true?  
 (A) Sound waves with large amplitudes have less energy and sound quieter. (B) Sound waves with large amplitudes have more energy and sound louder. (C) Sound waves with large amplitudes have the same energy and sound quieter. (D) Sound waves with large amplitudes have the same energy and sound louder.
answer:

B