Answer:
Closing
Explanation:
The salutation is to greet the person you are addressing, it goes before the introduction. The introduction is a brief summary of the letter itself and the body is the letter itself.
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.
B. an image, symbol, character, or plot that recurs consistently across cultures and time and that is considered universal