A Prodrome in Bipolar Disorder Refers To

A prodrome in bipolar disorder refers to:

A) The characteristic symptoms an individual experiences that herald the onset of a manic, hypomanic, or depressive episode
B) The environmental or behavioral risk factors (e.g., sleep deprivation, lack of regularity in one's daily schedule) that place an individual at risk for mania, hypomania, or depression
C) The symptoms of a mood episode that are the most persistent and the last to resolve
D) The constellation of factors (e.g., genetic, environmental, developmental) that place an individual at risk for the development of a bipolar disorder