public opinion in favor of a revised theory corporate sponsorship of a revised theory government policy based on a revised theory experimental results that support a revised theory
I gave my students this multiple choice question: Which of these is a reason that scientists revise theories?

Only one answer is correct among these 4 choices:
- public opinion in favor of a revised theory
- corporate sponsorship of a revised theory
- government policy based on a revised theory
- experimental results that support a revised theory

Could you tell me which one is correct?

experimental results that support a revised theory