Respuesta :
I'm pretty sure its C because since your the reader the writer isn't expecting you to be physically involved in a case study and that's the only one that makes sense.
The main reason an author includes evidence in a case study is to help the reader draw a conclusion from the case study.
What is a Case Study?
A case study may be defined as an in-depth study of a research issue. A case study is an explanatory and experimental analysis of a person, group, or event.
The main purpose of the case study is to describe the situation, identify its key issues, and analyze the same using relevant concepts. Evidence in a case study provides more reliability to the information and helps the user to easily understand the facts.
Therefore the correct option is C.
Learn more about the case study here:
https://brainly.com/question/13831643