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.
Answer is: boda (that is wedding in spanish)
Answer:
me, as a spanish speaker, i say there is no difference
Explanation:
Tú eres de Peru.
Ella es mi amiga.
Nosotros somos chicos.
Él es de chile.
Yo soy inteligente.