When Diana Was Three Years Old,she Became Terrified When the Neighbour's

Multiple Choice

When Diana was three years old,she became terrified when the neighbour's pet parrot kept flying near her head.Today she is afraid of all birds,including robins,pigeons,and blue jays.What process does this illustrate

A)  negative avoidance 
B)  stimulus discrimination 
C)  instinctive drift 
D)  stimulus generalization