Question

To which question would you answer <Muy bien, gracias. ¿Y tú?>

Answer 1

EDIT:
¿Como estas? 

late, but whatever

Answer 2

1- how are you?
2- where are you from.
3- what is your name?
4-who is the teacher?
   so you would answer Muy bien, gracias. ¿Y tú? whitch means very good thank you, and you? to number 1.