Even though he is only 5 years old, he is quite the little Einstein. allusion answer?

Which of the following sentences contains the essential expression? a. we agreed of course that the party should be a surprise. b. mr. palmeri, our next-door neighbor, grows beautiful roses. c. jack, a football player, is trying for a scholarship. : d. the woman now approaching the microphone will introduce the speaker.

Which techniques best describe the tone the author is using in this passage?

Pls, i really need on this question?