1) Ulysses Grant led the war for the union in the west. Option B is correct.
During the American Civil War Grant led the Union Army as its commanding general to victory over the Confederacy with the supervision of President Abraham Lincoln.
The battle of Vicksburg gave the Union army control over the Mississippi River. Option D is correct.
A victory at the siege of Vicksburg, Mississippi, in 1863 made the Union gain control of the Mississippi River in the American Civil War. After the Battle of Shiloh in April 1862, General Ulysses S. Grant's Union army moved south expecting to secure control of the Mississippi River for the Union.