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:
The cells of a plant help the plant maintain its life functions. What part of a plant cell has the function of producing sugar in the presence of sunlight?  
 (A) chloroplast (B) cytoplasm (C) mitochondria (D) nucleus
answer:
A


question:
In animal skin tissue, cell division is responsible for  
 (A) growth and repair (B) sexual reproduction (C) obtaining energy (D) production of sex cells
answer:
A


question:
Which form of energy is produced when paper is burned?  
 (A) heat (B) magnetic (C) electrical (D) chemical
answer:

A