Anne Experienced Extreme Pain at the Dentist as a Child

Anne experienced extreme pain at the dentist as a child.Now,she goes to a different dentist,but feels her heart race when she arrives,and goes down when she leaves.Her heart racing whenever she goes to the dentist is due to __________,and the calming feeling when she leaves is due to __________.

A) classical conditioning,operant conditioning.
B) operant conditioning,classical conditioning.
C) operant conditioning,meditational learning.
D) operant conditioning,modeling.