If you don't mind me asking, what are the following?
Answrs: Part a) "Facts from a documentary.." This is talking about the benefits of artificial organs instead of donated ones.
Part b) "There are several ..." Because it is a sentence that is likely to precede facts. The others are opinions about how something 'SHOULD' be, and aren't presenting facts or claiming something.The first one 3ven says "I think..." which is clearly an opinion.
The correct answer is option A. "Emotion and logic". An effective argument should convince or persuade the audience about the topic that is discussed. In order to be persuasive, an effective argument must appeal to emotion and logic, making the audience to feel and think what the speaker wants to transmit.
