Bonjour,
How would most French speakers ask their neighbor's ten-year-old son his first name?
<em>O A Quel est ton prénom?</em>
You use: Vous when talking in a formal way, or when talking to multiple people
You use: Je when talking about yourself
And you use: Tu when talking informally or to a friend
So the answer is B) tu
#1 is correct.#2 is correct.#3 is correct.#4 is du.#5 is D.#6 is des.#7 is A.#8 is A.#9 is D. Sorry if these are wrong im not perfect with french but I hope these help.