If your choices are the following:
A. Christians denied the existence of pagan Roman gods and worshiped only one God.
B. The Christians refused to follow Diocletian's orders that all soldiers and administrators sacrifice to Rome's traditional gods.
C. Christians were a majority in Rome.
The Christians refused to follow Diocletian's orders that all soldiers and administrators sacrifice to Rome's traditional gods.So the correct answers are A and B. Christians denied the existence of pagan Roman gods and worshiped only one God.