Theo Received a Series of Shots Growing Up and Began

Multiple Choice

Theo received a series of shots growing up and began to grow anxious whenever he pulled up to the doctor's office.After a series of regular checkups,the anxiety eventually went away.However,yesterday as he pulled into the doctor's office,that same anxious feeling returned.What may have occurred?

A) Reacquisition
B) Reemergence
C) Spontaneous recovery
D) Unprovoked relapse