I believe the answer is 3rd person
The sentence that contains a verbal phrase acting as a modifier is: Giving a presentation in front of my class, I suddenly developed sever stage fright.
Modifiers are optional elements in a phrase structure that even when removed, it does not affect the whole grammar of the sentence.
Answer:
Developing flavor additives to make the new fries taste like the old ones
The conclusion. it starts the essay
The answer is the third choice or choice C. Persuade means to CONVINCE someone to try to do something or try something. In this case the speech is PERSUADING the audience to become vegetarians.