"If you throw a cat out of a window, does it then become kitty litter?"
The statement above is an example of a

Select one:
a. aside
b. pun
c. tragedy
d. soliloquy

Pun.

Explanation:

--> aside =  a remark or passage in a play that is intended to be heard by the audience but unheard by the other characters in the play.

--> pun = a joke exploiting the different possible meanings of a word or the fact that there are words which sound alike but have different meanings.  

--> tragedy = a play dealing with tragic events and having an unhappy ending, especially one concerning the downfall of the main character.

--> soliloquy = an act of speaking one's thoughts aloud when by oneself or regardless of any hearers, especially by a character in a play.

a question like this requires the excerpt to be included in order to answer the question.