The Main Difference Between Tragedies and Satyr Plays,on the One

The main difference between tragedies and satyr plays,on the one hand,and the dithyramb,on the other,was that

A) the dithyramb preserved religious tone;the tone of the tragedies and satyr plays was secular.
B) the tragedies and satyr plays added an actor to the performance.
C) the dithyramb was always performed by women,whereas only men were permitted to perform in a tragedy or satyr play.
D) the dithyramb was always keyed to special dates on the astronomical and religious calendar;the tragedies and satyr plays could be performed at any time of the year.