Why Did Diocletian Launch His Great Persecution of Christians

Why did Diocletian launch his Great Persecution of Christians?

A) He believed that the wrath of the gods had caused the crisis of the third century and that returning to the ancient gods would win back divine favor.
B) Christian communities were attacking Roman temples and priests in an effort to purge Rome of its polytheistic character.
C) He needed scapegoats to account for some of the disasters of the third century, such as the great fire in the city of Rome.
D) He falsely believed that Christians were trying to invite in and make peace with hostile barbarian tribes on the Roman frontiers.