Carolyn Worked for the Same Company for Twelve Years

Carolyn worked for the same company for twelve years.Six months ago the company closed down.Carolyn had been feeling extremely depressed over the loss of her job,and she had considered seeing a therapist for help with her depression.However,for the past week she has been feeling much better,and has decided that she doesn't need professional treatment after all.In this case,Carolyn appears to have experienced

A) spontaneous remission.
B) personal insight.
C) the placebo effect.
D) transference.