Which of the following was one of the policy changes thomas jefferson made when he became president? . a. he urged congress to support the alien and sedition acts. b. he used expensive displays to inspire the public’s respect. c. he planned to retire the national debt by paying it down. d. he wanted to build up the nation’s army and navy.

The correct answer is D. He wanted to build up the nation's army an navy

Explanation:

Thomas Jefferson was the president of the U.S. from 1801 to 1809 and vice president from 1797 to 1801 also, he was the main author of the Declaration of Independence, that was the first step of United States becoming independent from the British. As president Jefferson promoted equal rights and freedom; pursued trading interest of the nation against British threats and believed the nation needed to have its own national defense (army) instead of relying on other nations, because of this in 1802 Jefferson founded the United States Military Academy, besides establishing laws and limits for the defense, also, Jefferson expanded the Navy as the barbaric wars and other naval conflicts with the British emerged.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).