The principle of rhetoric is mainly to persuade and impress and the style can be grandiloquent, grandiose, flowery or extravagant for example. It can be helpful to say introduce a speaker who has a very good education, who is very knowledgeable, very experienced, has excellent judgement and yet is modest for example and the above words could be used to praise him or her to give the audience a good impression of the person.
I think the answer would be a because there would be more attention brought to the subject.
The answer is C, he had a reaction to the anti allergy medication and it stopped his tear ducts from working
