The correct answer is B) the siege of Vicksburg.
It cut off the states of Arkansas, Louisiana, and texas from the rest of the confederacy. it gave the union navy complete control of the Mississippi River. It, along with the battle of Gettysburg, is considered one of the major turning points in the civil war. The civil war event these facts are related to is the siege of Vicksburg.
During the Siege of Vicksburg, Union General Ulysses Grant made the best strategic decisions to defeat the Confederate Army. The siege started in 1862 and ended until July 1863. General John C. Pemberton, the leader of the Confederate troops in the zone, retreated to Vicksburg, and that is when General Grant sealed the city. The Confederates troops surrender on July 4, 1863. It was an important victory that allowed the Union to control the Mississippi River.
