The case study method is most effective in:A. Proving out theoryB. Narrowing the gap between theory and practiceC. Simulating reality

Letter B is correct. Narrowing the gap between theory and practice.

Explanation:

Case study is an investigative methodological approach applied to simple or applied social sciences. It is carried out through the use of different qualitative methods for the collection of data and information relevant to the foundation of the research. The qualitative method is the most appropriate in a case study, as it occurs through subjective and not substantially statistical means of in-depth analysis of relevant factors in an event, an individual, an institution, a group and others.

Case studies can be classified as:

exploratory, descriptive, or explanatory.

So it is correct to state that the purpose of the case study is to reduce the difference between theory and practice. Because the analysis of the information collected and the variables and patterns found will provide subsidies for the discussion and better understanding and reasoning between what happens between the theory and the practice analyzed in the case study.