Question

which sentence best uses punctuation for dramatic effect? if i do not memorize my speech, pack my suitcase, and find a cat sitter by this afternoon, i will not make it to the debate. there is no way—and i mean absolutely no way—that i am going along with her silly plan. until i saw the place with my own eyes, i did not believe a canyon could be so big or so beautiful! without meaning to (since i had never been to the office), i parked in the spot reserved for the president of the company.

Explanation:

Dashes can create a dramatic pause or emphasis. The second sentence uses dashes to strongly emphasize the speaker's refusal, making it more dramatic compared to the other sentences which use commas mainly for listing or separating clauses in a more routine way.

Answer:

There is no way—and I mean absolutely no way—that I am going along with her silly plan.