Explanation:
The Secretary of State, appointed by the President with the advice and consent of the Senate, is the President's chief foreign affairs adviser. The Secretary carries out the President's foreign policies through the State Department and the Foreign Service of the United States
Lincoln was morally opposed to slavery and politically opposed to any expansion of it; answer via Wikipedia
Texas Revolution, also called War of Texas Independence, war fought from October 1835 to April 1836 between Mexico and Texas colonists that resulted in Texas's independence from Mexico and the founding of the Republic of Texas (1836–45).
During the renaissance, many thinkers who read the ancient texts and educated themselves started accusing the Catholic church that it didn't care about people and that it was dogmatic, always looking for ways to gather wealth and more power. These ancient texts came from many sources such as Plato and Aristotle from the western hemisphere, or as far away as india.
The correct answer is the United States constitution. It outlines the three branches, legislative, judicial, and executive, and establishes them as a system of checks and balances. Each one is more powerful than another and weaker than the third one, which makes it a triangle where everyone is balanced.