Q: 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.
Which statement about gravity is written as a law?
(A) The reason gravity works is because masses bend time and space. (B) The effect of gravity on plants might be reduced if certain minerals are added to the soil. (C) The force of gravity between two objects depends upon their masses and the distance between them. (D) The experiments being done on gravity today are better than what were done in the past and a full understanding is only a few years away.
A:
C