Answer:
C.
Step-by-step explanation:
Christianity began to spread through the Roman Provinces in the first century which later became its official religion.
But before it became its official religion, Christians were being persecuted in the Roman empire by many rulers such as Nero, Trajan, etc.
Trajan was the Roman emperor of the Roman Empire and ruled as an emperor from 98-117. Under his emperor-ship, non-citizens, who had accepted or adopted Christianity and denied to recant were executed openly and those who were citizens of Rome and had adopted Christianity were put in jail.
So, the correct answer is option C.