Which is an example of situational irony in "wherefore art thou romeo? ”
a. shondra is trying to , but she ends up making it harder for the narrator to understand her lines.
b. the reader knows that the narrator will forget her lines during the reading, but the narrator does not know.
c. allison greets the narrator in a friendly manner even though the two do not like one another.
d. the narrator succeeds by focusing on allison, the person she thought would ruin her performance.

The correct answer is the following: option A. An example of situational irony in "Wherefore Art Thou Romeo" is that Shondra is trying to help, but she ends up making it harder for the narrator to understand her lines.

A situational irony is a literary device in which there is an incongruity between  the expectations that a character or the reader has  and what actually ends up happening. That is why option a is an example of a situational irony, in which the character of Shondra expected to be of help but ends up making it more difficult for the narrator to understand her.

not concrete, existing in thought or as an idea but not having a physical or concrete existence

what is margin again? i’m confusion