Considering the cultural context of the first century, what is the most plausible explanation for why Jesus frequently used parables in his teachings?

A To simplify complex theological concepts for an uneducated audience, making them easily memorable. B To deliberately conceal the truth from those who were not spiritually ready to receive it, fulfilling Old Testament prophecies. C To entertain the crowds and gain popularity, as storytelling was a common form of entertainment. D To challenge the established religious leaders and provoke them into debate, highlighting their hypocrisy.