Alexia Started a New Job on Monday Morning

Multiple Choice

Alexia started a new job on Monday morning. For the first three days she showed up in bright colours and was outgoing and extroverted. However, on Thursday she showed up in a dark suit and appeared shy and introverted. She insisted that her name was Clara, and she couldn't understand why her co-workers kept calling her Alexia. In this example, Alexia is showing symptoms that are consistent with

A) bipolar disorder.
B) dissociative identity disorder.
C) disorganised schizophrenia.
D) antisocial personality disorder.