Which psychologist is using a biopsychosocial approach to psychotherapy?
a. Dr. Yan, who creates a unique therapeutic strategy for each of his clients
b. Dr. Eisner, who requires her clients to have a complete blood work-up before initiating therapy
c. Dr. Pohl, who shadows his clients in their daily lives to gain a better understanding of their stressors
d. Dr. English, who monitors her clients' physiological parameters (e.g., heart rate, perspiration) to get a better read on their feelings
