Which of the following occurred at Fort Sumter

Question

a. The Confederate commander refused to fire on the fort and had to be replaced
b. Five Union protectors of the fort were killed
c. The Confederacy shelled the fort for almost two days before its commander finally surrendered
d. All of the above
e. None of the above

Is it C?

Answer 1

http://www.civilwar.org/battlefields/fort-sumter.html?tab=facts

I think you're right, but double-check here to be sure.