Someone who experiences four or more alternations between mild mania and major depression within a one-year time span would be classified as having:

A) bipolar II seasonal.
B) bipolar II rapid cycling.
C) bipolar I mixed episodes.
D) bipolar I.

Rapid Cycling

a term in bipolar disorder indicating four or more mood episodes within a year.

Mild Mania

A less severe form of mania characterized by elevated or irritable mood, increased activity or energy, but without significant impairment in social or occupational functioning.

Major Depression

A mental disorder marked by persistent feelings of sadness or despair and a lack of interest in external stimuli, affecting one's ability to function daily.