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:
Which form of energy is found in food?  
 (A) chemical (B) electrical (C) sound (D) mechanical
answer:
A


question:
The transfer of heat in the atmosphere by winds that circulate between the equator and the poles is an example of  
 (A) radiation. (B) insulation. (C) convection. (D) conduction.
answer:
C


question:
Which cellular organelle modifies fatty acids?  
 (A) chloroplast (B) mitochondrion (C) Golgi complex (D) endoplasmic reticulum
answer:

D