Which of the Following Statements Is True of Bipolar Disorder

Which of the following statements is true of bipolar disorder?

A) Individuals with bipolar II disorder have extreme manic episodes during which they may experience hallucinations.
B) Individuals with bipolar disorder can have manic and depressive episodes four or more times a year, but they usually are separated by 6 months to a year.
C) Bipolar I disorder refers to the milder version of bipolar disorder in which the individual may experience a less extreme level of euphoria.
D) Bipolar disorder is more common in men than in women.