Answer:
a phobia
Explanation:
Phobia is irrational fear to something. Someone with phobia will have an extreme reaction and fear against the object that cause that stimulus. The trigger of phobia can be vary from animals, object, or even a social condition. Phobia often precedent by a highly traumatic event in the past. In this case, Salina have traumatic event when she is young girl that cause the phobia to white picket fence.
