50 POINTS THIS IS A TIMED ASSIGNMENT PLEASE HELP

Why did the Confederacy want to control Fort Sumter?

a Fort Sumter was located in a Union state and controlling it would make it easier to hold off Union troops.
b Fort Sumter was located within the Confederacy, and it protected important shipping lanes and commercial areas.
c Fort Sumter was located on the border of a Union state and a Confederate state, which gave it a high strategic value.
d Fort Sumter was located within the Confederacy, and the Union wanted to use it to store weapons and other supplies.