Answer: The answer is the first. Para rendir homenaje a Dios por la vida de la quinceañera.
Explanation: Because in the birthday the girl go to the church and the familiars say thanks to God because is a 1 year more. I hope I help you.
The correct answer would be;
¿A ti te preocupa no saber qué estudiar?
If you mean to ask what is to start in spanish, it is empezar.
A las siete yo salgo de mi casa.