As the Church Became the Official Religion of the Roman

As the Church became the official religion of the Roman Empire, much of its original fervor was lost and it began to grow corrupt and worldly.In which of the following ways did serious Christians revolt against this situation?

A) By promoting the practice of polygyny
B) By engaging in pederasty to move higher in the Church
C) By choosing sex within marriage over virginity
D) By taking up the practice of celibacy