"The Duck and the Smart Phone" Reread this sentence from paragraph 9

David's father has three sons : snap, crackle and ?

Which is the best strategy for responding to counter-arguments in your persuasive research essay? a. avoid addressing opinions that point out flaws in your thesis. b. use language that will appeal to the emotions of your audience. c. respond to reasonable outlooks instead of weak ones. d. ignore any evidence that does not support your own thesis

Which best expresses the irony present in this passage?