The answer is A) People began to apply Christian principles to the social ills of society.
The expansion of slavery was a divisive political issue because the north and south were split 50/50 between slave/anti-slave states. The north didn't want to accept a new state unless it was going to be free and the south didn't want to accept a state unless it was a slave state.
Answer:
make (an action or process) easy or easier.
Explanation: