Answer:
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.