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:
The fossils of dinosaurs that lived millions of years ago can be found in  
 (A) the water of oceans. (B) the ice on ponds. (C) the trunks of trees. (D) rocks in the ground.
answer:
D


question:
Two people are pushing a car. One person is pushing with a force of 450 N and the other person is pushing with a force of 300 N. What information is needed to determine the net force applied to the car by the people?  
 (A) the direction of the road (B) the direction of the forces (C) the weight of the two people (D) the weight of the automobile
answer:

B