Answer: Theory
Step-by-step explanation:
According to the given question, a theory is the term which refers to the interrelated proposition that is used to describe, predict and also explain the events.
Theory is defined as the group of different ideas that helps in explaining the concept or the specific research.
It is also refers to the procedure or the policy that is specifically proposed on the basis of actions and principle by systematically understand the situation and the events.
Therefore, Theory is the correct answer.