Respuesta :
Answer:
"It's bad enough wasting time without killing it."
Explanation:
The best example of using idiom for humorous effect is C. It's bad enough wasting time without killing it, from the Phantom Tollbooth.
This is useful as it incorportes figurative language in a literary work.
What is an idiom?
This is a saying that contains a figurative meaning different from he phrase's literal meaning.
The humorous effect felt in the sentence is conventionally understood by native speakers, hence, it is the best example to be used.
Read more about idiom here:
https://brainly.com/question/387314