(A) ** Vicksburg
(B) Memphis
(C) New Orleans
(D) Atlanta
EXPLANATIONS BELOW
Concept note-1: -Vicksburg’s strategic location on the Mississippi River made it a critical win for both the Union and the Confederacy. The Confederate surrender there ensured Union control of the Mississippi River and cleaved the South in two.
Concept note-2: -By having control of the river, Union forces would split the Confederacy in two and control an important route to move men and supplies. The last major Confederate stronghold on the Mississippi River was the city of Vicksburg, Mississippi.
Concept note-3: -Vicksburg, Mississippi is full of history, from antebellum homes to Civil War battlegrounds. One of the most famous battles to be fought in the town was the Siege of Vicksburg, the final major military action in the Vicksburg campaign of the American Civil War.
Concept note-4: -Vicksburg is a historic city in Warren County, Mississippi, United States.