Answer:
c. discuss, analyze, interpret, and evaluate the research findings or solution to the problem.
Step-by-step explanation:
The formal reports represent the end product of thorough investigation hence, it should not describe or define concepts. It should disclosure what the research and analysis generated.
Also, we must understand that the body of a text is the main content.
Thus option A and B are not correct as they focus on define concepts rather than define the investigation.
Option D also is incorrect as it determinated the persons responsibles.
The body should acomplish the goal of the formal report therefore, option C is the correct one.