Why Might Labelling Childhood Trauma as a Cause of Borderline

Why might labelling childhood trauma as a cause of borderline personality disorder be too simplistic an explanation?

A) because people with borderline personality disorder frequently lie about childhood trauma
B) because childhood traumas occur frequently and don't always create any disorders
C) because individuals with borderline personality disorder tend to respond to SSRI medications
D) because there are too many neurological deficits that are noted in borderline personality disorder patients