When Salina was a young girl, a dog viciously attacked her as she was walking along a white picket fence. Since then, she displays intense fear of white picket fences. Salina is demonstrating:.1. a descriminative stimulus2. superstitious behavior3. stimulus descrimination4. a phobia5. spontaneous recovery

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.

b) the planets year length would be longer

hope this !

answer; first blank(1); 30% two(2); salmonella; i believe this is correct; //good luck;