Question

You are a new student, (yet/and/so) you will have to learn the class routines.

Answer 1

Answer:

You are a new student, (so) you will have to learn the class routines.

Explanation:

Answer 2

Answer:

the answer would be so

Explanation:

You are a new student, so you will have tho learn the class routines.

the other two don't make sense, since it doesn't fit with what the narrator is trying to say.