Final answer:
George Washington chose Alexander Hamilton to be his Secretary of the Treasury.
Step-by-step explanation:
George Washington appointed Alexander Hamilton as his Secretary of the Treasury. Hamilton, a staunch Federalist, was an architect of the Constitution and was instrumental in the creation of a national bank. In contrast, for the position of Secretary of State, Washington chose Thomas Jefferson, who later served as Vice President under John Adams after the election of 1796, despite being from the opposing political party known as the Republicans (later Democratic-Republicans).