How does the play-within-a-play in Act III of Hamlet represent Elizabethan drama?

How does the play-within-a-play in Act III of Hamlet represent Elizabethan drama?
A. by teaching a spiritual lesson to the characters of the play
B. by imparting historical detail about Shakespeare’s England
C. by criticizing the country’s political policies of the day
D. by offering a realistic portrayal of human behavior