People with bipolar II disorder experience episodes that meet the criteria for major depression, but have:

A) milder episodes of mania known as hypomania.
B) stronger episodes of mania known as hypermania.
C) milder symptoms of psychomotor retardation.
D) stronger symptoms of psychomotor agitation.

People with bipolar II disorder experience major depressive episodes, but also have milder episodes of mania known as hypomania. This distinguishes bipolar II disorder from bipolar I disorder, where individuals have full-blown manic episodes. There may be some psychomotor agitation, but not at the level seen in bipolar I disorder.