Which of the following did not occur during the reign of diocletian? a. church leaders were arrested. b. christians were crucified for burning rome. c. churches and christian writings were burned. d. christians were required to offer sacrifices.

The correct answer is - B. Christians were crucified for burning Rome.
Christians never burned Rome, yet alone be crucified for that reason. There were crucifixions of Christians but not for that particular reason. Diocletian is well known for his cruelty towards the Christians, and he is also the last Roman Emperor that stood and protected the traditional religion and beliefs, very often with very cruel methods.

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