Whenever Five-Year-Old Claire Goes to the Dentist,she Becomes Anxious and Cries.She

Multiple Choice

Whenever five-year-old Claire goes to the dentist,she becomes anxious and cries.She was not afraid of the dentist on her first visit,so her fear was a learned behaviour.The UCS in this case was probably

A) painful teeth cleaning.
B) sweet toothpaste.
C) the dentist's beard.
D) small prizes given after the exam.