Which of the following disorders is Ali most likely experiencing?

Antisocial personality disorder involves a pattern of disregard for the rights of others, often manifesting as deceitfulness, impulsivity, and a lack of remorse for harmful actions. While individuals with this disorder may appear organized and disciplined in their manipulative behaviors, they do not typically experience the pervasive sadness and hopelessness characteristic of depression.

Dissociative identity disorder (previously known as multiple personality disorder) is marked by the presence of two or more distinct personality states or an experience of possession. This condition is primarily associated with traumatic experiences rather than the emotional symptoms seen in major depressive disorder, making it an unlikely fit for Ali's situation.

Bipolar disorder involves episodes of depression alternating with episodes of mania or hypomania. While depressive episodes can resemble major depressive disorder, the presence of manic or hypomanic symptoms distinguishes bipolar disorder, which would not be applicable if Ali is experiencing a consistent depressive state.

Schizoaffective disorder combines features of schizophrenia, such as hallucinations or delusions, with mood disorder symptoms. While it can include depressive episodes, the primary features of psychosis would not be expected in a straightforward case of major depression, making it less likely to be the disorder Ali is experiencing.