Chica is feminine... reservada is feminine... so which of your options are feminine? Ella and la. Ella means she so it can't work, as that would mean she girl is very reserved. La is the femenine the. So that is your answer.
Usted,because you use that when you talk to someone you are not familiar with
Answer: number one how is your family ( i didnt catch the rest)
Explanation:
