Final answer:
A 25-year-old female displaying unstable relationships, impulsivity in spending and sexual practices, and self-harm is most likely experiencing Borderline Personality Disorder according to the DSM criteria. The correct option is d).
Step-by-step explanation:
The diagnosis most consistent with the symptoms provided of a 25-year-old female who has a history of unstable relationships, superficial cuts on both wrists, impulsive spending and sexual practices would be d) Borderline Personality Disorder (BPD).
The symptoms of unstable relationships, impulsivity, and self-harm are key characteristics of BPD as described in the Diagnostic and Statistical Manual of Mental Disorders (DSM).
It is important to note that while institutionalized sexism may play a role in the frequency of BPD diagnoses in women, the symptoms described align with the diagnostic criteria for BPD. Option d) is the correct one.