For what reason, according to the text, were the plays written in rhyme during the Middle Ages?

A. It showed the playwrights' reverence to God to use
heightened language.
B. Playwrights of the time didn't know of any other
way to write.
C. It was easier for the actors to memorize.
D. Playwrights showed off their excellent
vocabularies by rhyming and were therefore hired
more often.

C.