Question

puns were used by shakespeare to
explain historical background to the audience.
add humor or hidden meanings to a scene.
create a tone of confusion in his plays.
encourage audiences to listen more carefully.

Explanation:

Puns are a literary device that play on words with multiple - meanings. Shakespeare used them to add layers of meaning, often for humor or to convey hidden messages in his plays.

Answer:

add humor or hidden meanings to a scene.