In which part of an interview would you indicate the purpose of the interview? opening body closing

a-opening
b-body
c-closing

The correct option is A - Opening. In general, the main idea of a text (independently of its format) is stated in the begining of it. In this case, the purpose or main reason (idea) should be indicated in the beggining so that in the body, that purpose can be further developed in detail (with main points and ideas behind the interview). Finally, in the closing, it could be pointed out once again the purpose of the interview and its main points and also it could be added further information such as a reflexion or further considerations as regards of the interview.

cassius, casca, and their allies plant false documents to manipulate brutus to join their cause to remove caesar. after doing so, they visit brutus at night in his home to persuade him of their views. there they plan caesar's death. brutus is troubled but refuses to confide in his devoted wife, portia. on 15 march, caesar's wife, calpurnia, urges him not to go to the senate. she has had visionary dreams and fears the portents of the overnight storms.