Question

Read the excerpt from “The Gift of the Magi” by O. Henry. Which sentence uses an auxiliary verb to express certainty?

Out of his trance Jim seemed quickly to wake. He enfolded his Della. For ten seconds let us regard with discreet scrutiny some inconsequential object in the other direction. Eight dollars a week or a million a year - what is the difference? *A mathematician or a wit would give you the wrong answer.* The magi brought valuable gifts, but that was not among them. *This dark assertion will be illuminated later on.*
Jim drew a package from his overcoat pocket and threw it upon the table.
"Don't make any mistake, Dell," he said, "about me. *I don't think there's anything in the way of a haircut or a shave or a shampoo that could make me like my girl any less.* But if you'll unwrap that package you may see why you had me going a while at first."

Answer 1

*This dark assertion will be illuminated later on.*

Answer 2

"This dark assertion will be illuminated later on" is the correct answer.

Step-by-step explanation:

The Gift of the Magi is a short story written by O. Henry, first published in 1905. It's the story of a couple that deals with their economic situation and their struggles to buy each others Christmas gifts.

In the answer, the speaker uses a future tense, used to express actions in the future, and it has three auxiliaries, may, won't, and will. May expresses uncertainty; won't indicates negative actions, and will expresses certainty in the future, so it is the correct answer.