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:
Research in which of these areas has the greatest impact on the environment?  
 (A) irradiating food (B) organic fertilizers (C) bacteria to clean up oil spills (D) developing larger, sweeter strawberries
answer:
C


question:
Which two life processes occur in both plants and humans?  
 (A) growing and reproducing (B) germinating and making food (C) growing and making food (D) germinating and reproducing
answer:
A


question:
Which characteristic of a volvox colony makes it more like a multicellular organism than a simple cluster of unicellular organisms?  
 (A) The cells in the colony respond to stimuli separately. (B) The cells in the colony are arranged in a specific shape. (C) Some cells in the colony are specialized for reproduction. (D) Cells in the colony are connected by strands of cytoplasm.
answer:

C