Which excerpt from extremely loud and incredibly close reveals a childish tone?

a) "need some more copies? walt asked i gave him a high-five, and i showed him the key that i had found, and asked him
what he could tell me about it
b) "could be a safe deposit box actually. an old one. or some kind of fire-safe cabinet" that made me crack up a little,
even though i know there's nothing funny about being a (redacted) (redacted).
c) "well, hardly anyone keys anymore.' 'i use keys, "i told him, and i showed him my apartment key. "i know you do,"
he said
d) i said, i have another question. shoot" "do you think i could find the company that made this key? " anyone could've
made it" well then what i want to know is how can i find the lock that it opens? "

Answer:

The excerpt from Extremely Loud and Incredibly Close that reveals a childish tone is - "Need some more copies?” Walt asked. I gave him a high-five, and I showed him the key that I had found, and asked him what he could tell me about it. Here, the right answer is Option A.

Explanation:

Jonathan Safran Foer’s novel “Extremely Loud and Incredibly Close,” is where the themes of death, isolation, loss and secrecy finds its place. Oskar, a nine-year old boy, finds a key in a vase which belonged to his father. His father died in the September 11 attacks. Finding the key motivates him to go on search mission around New York to get the answers that the key had kept locked away. This journey finally helps him to find a closure to his father's untimely death. This dialogue takes place between Oskar and Walt on his journey to gather information about the key.

in my opinion i think it was not excessive at all. the maids turned against the queen in his absence, how could he ever trust them again? if he let them go they would surely spread the news of the suitor's deaths, which is much too risky. as for the suitors, they were selfish, rude, and greedy. the god's had apparently marked them for death, meaning odysseus made their death come faster.

what are the options?