What is the best explanation for why scientific theories are modified?
A)Theories more than ten years old are usually out of date.
B)Scientists want to prove that the work of other scientists is wrong.
C)New evidence that supports a revision prompts scientists to modify the earlier theories.
D)So much information is available today that it is harder to focus research and disprove theories.
I believe the answer is C but i'm not sure.
Yes, C.
You are correct, the best explanation for why scientific theories are modified is C) New evidence that supports a revision prompts scientists to modify the earlier theories.
Scientists constantly seek to understand the natural world better, and as new evidence is discovered through experimentation, observation, and continued research, it can challenge or expand upon existing theories. When new evidence emerges that contradicts or provides a more accurate explanation than the current theory, scientists modify the theory to incorporate and account for the new evidence. This process is a fundamental aspect of the scientific method and helps to ensure scientific knowledge progresses and becomes more accurate over time.