B. is the correct answer I took the test.
An important duty of the president is "negotiating treaties," since this duty falls to the executive branch, and the president is in charge of this branch (although this specific task is often delegated to the State Department).
World War I took the United States out of a recession into a 44-month economic boom. 30 Before the war, America had been a debtor nation. After the war, it became a lender, especially to Latin America. U.S. exports to Europe increased as those countries geared up for war.
-google
The Minie Ball was a type of muzzle-loading spin-stabilized rifled musket
