Which sentence in this excerpt from "In Another Country" by Ernest Hemingway is an example of irony?

Do amazon give you real apple products

(01.03 mc) what does the conversation between marcus and his father reveal about their characters? a marcus doesn't agree with the regulations put in place, but his father does. b marcus's father doesn't agree with the regulations put in place, but marcus does. c marcus's father thinks the regulations provide security, and so does marcus. d marcus wants stricter regulations to be put in place, and his father agrees.

How whitman’s word choices and line arrangement in lines 4-8 create a feeling of vitality and motion in this section