Which best describes the results of a case study? a) it produces more reliable results than other methods because of its depth b) its results are not generally applicable c) it relies solely on secondary data analysis d) all of the above.

A case study is n in-depth study of the event, situation or individual.

Hence the result of the study are inferences drawn not generally applicable. Thus option B is correct.

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B). Its results are not generally applicable.

Explanation:

A case study is described as the research plan or an experimental investigation that primarily intends to observe or examine a phenomenon, individual, or a group(as representatives) within its authentic context to make generalized deductions or conclusions.

As per the question, option B best describes the outcomes of a case study. The description of 'its results are not generally applicable' reflects that the research could not lead to producing a generalized conclusion that can represent the other associated units intensively. Thus, option B is the correct answer.

the correct answer is d