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.
The shortest lived known head of state is Jean I of France who ruled and lived for five days in 1316.
Drug use testing for students who participate in extracurricular activities under the forth amendment is legal. In 1994, the supreme court made the decision that it was constitutional. This ruling was made as the supreme court found that students that participate in extracurricular activities had a lower expectation of privacy than the average individual.
South Carolina and Georgia were the most dependent during slavery.
The answer is C. The new forms of communication such as phones and morse code improve communications. The railroad and steamboat improved transportation.