People revolted and set up a new government, the second republic.
When they traveled, they carried cheap luggage, which were called carpetbags. They were mass produced during this time (reconstruction era) and therefore, the many people coming down with them from the north were referred to derisively as carpetbaggers.
The split into Sunni and Shia of the religion of Islam can traced back to the dispute over the question of Muhammad's successor. Thus, the answer is letter C. It was believed that the dispute emerged in 632 just after the death of the Prophet Muhammad.