Which statement best explains the difference between comedy and tragedy?

A. A tragedy includes long monologues, while a comedy avoids monologues.
B. A comedy focuses on lighthearted themes and is often funny, while a tragedy is serious and sad.
C. A tragedy takes place during war, while a comedy takes place during peace.
D. A comedy has a series of stand-alone plots, while a tragedy has one ongoing plot.
E. A comedy challenges widely held ideas about society, while a tragedy enforces them.

B. A comedy focuses on lighthearted themes and is often funny, while a tragedy is serious and sad.