A 27-year-old female patient is admitted for 2 weeks for depressive symptoms. Her history is significant for an inflexible and pervasive history of interpersonal turmoil, poor self-image, affective lability, sexual indiscretions, and spending sprees starting in early adolescence and continuing on this admission. The patient does not currently admit to a risk of self-harm. Which of the following therapeutic modalities is indispensable in treating this patient?
A. Antipsychotics
B. Anticonvulsants
C. Antidepressants
D. Psychotherapy