It Can Be Said of the Rule of the Roman

It can be said of the rule of the Roman Emperor Diocletian that

A) He ended the chaos of the past fifty years, but at the cost of weakening the will of many Romans to support public life or fight for the empire
B) His policy of restoring many republican institutions ultimately weakened imperial rule
C) His vigorous renewal of pagan religious life prevented the triumph of Christianity for more than a century
D) He continued the corrupt practices of his predecessors