To Understand a Child's Frightened Cries at the Sight of a Barking

To understand a child's frightened cries at the sight of a barking dog,a learning theorist

A) would want to know what frightening stimulus had been paired with a barking dog in the child's past experience.
B) would examine the present situation to see what symbolic object was frightening the child.
C) would assume the dog represented a person the child feared.
D) would explain to the child all the reasons the child had not to fear the barking dog.