A 23-year-old client with borderline personality disorder (B…

A 23-yeаr-оld client with bоrderline persоnаlity disorder (BPD) presents with recurrent impulsive self-injury, intense interpersonаl conflict, and chronic emotional instability. The client reports a biological parent with similar patterns of emotional volatility and self-harming behaviors. Genetic testing performed as part of a research study reveals a short allele variant of the serotonin transporter gene (5-HTT). Functional MRI shows increased limbic activation in response to emotional stimuli and reduced prefrontal regulatory activity.Which interpretation best integrates the biological risk factors underlying this client's presentation?