Brent has been diagnosed with Alzheimer's disease. As part of his treatment plan, he is meeting with a therapist weekly while he still has some memory function. During their sessions, they discuss his life history, particularly addressing the regrets he has about the type of father he was to his children. Through their discussions, Brent comes to see that even though he wasn't a perfect father, his children do love him and did learn many good things from him. Brent is receiving which psychological treatment?
a. behavior therapy
b. memory training
c. reminiscence therapy
d. reality orientation