It would be the "legislative branch" that is divided into two separate chambers--one is called the Senate and the other is called the House of Representatives. This is called a "bicameral" legislature.
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.
When people are treated poorly based on their race or skin color
In June 1812, the United States declared war against Great Britain in reaction to three issues: the British economic blockade of France, the induction of thousands of neutral American seamen into the British Royal Navy against their will, and the British support of hostile Indian tribes along the Great Lakes frontier.