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 basic life functions of an organism are carried on by  
 (A) cells (B) nutrients (C) atoms (D) hormones
answer:
A


question:
Which statement describes all matter?  
 (A) All matter contains carbon. (B) All matter contains oxygen. (C) All matter is made up of cells. (D) All matter is made up of atoms.
answer:
D


question:
Which of the following correctly lists the organizational hierarchy of organisms from simplest to most complex?  
 (A) cells, organs, tissues, organ systems, organisms (B) cells, tissues, organs, organ systems, organisms (C) tissues, cells, organs, organ systems, organisms (D) tissues, organs, cells, organ systems, organisms
answer:

B