Q: You are given a science question (hard-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.
Many bacteria grow quickly at room temperatures of about 20C. The temperature inside a refrigerator is usually kept at about 4C. Which statement best explains how using a refrigerator has helped society?
(A) It keeps kitchens cooler in the summer. (B) It provides more space for food storage. (C) It makes food safer to eat for longer periods. (D) It makes electricity safer to use in the kitchen.
A:
C