A Preschool-Age Client Is Seen in the Clinic for a Sore

A preschool-age client is seen in the clinic for a sore throat. In this child's mind, what is the most likely causative agent for the sore throat?

A) Was exposed to someone else with a sore throat.
B) Did not eat the right foods.
C) Yelled at his brother.
D) Did not take his vitamins.