Read the sentence.
When organizing the information in a case study, the author presents evidence to help readers draw conclusions.

proof of something a logical judgment close examination an in-depth investigation

proof of something

Option A.

Explanation:

In the sentence that has been given in the following question, the word evidence means the proof of something which is used to prove something in the case study.

Evidences are used to prove a particular point of view and give direction towards the results of the case study. Thus evidences are proof of something.

what is the context here? we need to know what story you're talking about : )

this answer was editing it cause i couldn't delete!