The Difference Between Persistent Depressive Disorder and Bipolar Disorder Is

The difference between persistent depressive disorder and bipolar disorder is that

A) in the case of persistent depressive disorder, the individual experiences major depressive episodes.
B) in the case of persistent depressive disorder, episodes of depressive symptoms are not time-limited.
C) bipolar disorder is chronic in nature.
D) bipolar disorder involves intense and very disruptive experiences of a euphoric mood.