Tú abres los regalos is the only one that makes sense
1 prefieren
2 muestra
3 comienzo
4 recuerdas
5cierra
Explain: I hope this helps
The answer is (usted) because you dont have a personal relationship with this person.
ustedes means you guys
vosotros means all of us
tu is used for someone whom you are close with like a family member or someone whom you have know for a while.
