A metaphor is defined as a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.
"Conceit" is best defined as a lengthy or extended "<u>Metaphor</u>".
An extended metaphor, also known as a conceit or sustained metaphor, is an author's exploitation of a single metaphor or analogy at length through multiple linked tenors, vehicles, and grounds throughout a poem or story.
Example:- Love is a battlefield.
To know more about Metaphor, refer to the link:
brainly.com/question/1743071
I believe A is the correct answer
D because it says that he was mad AS hell. A simile uses like or as.