What was the difference between the ironclads, the monitor, and the merrimac?
a. the merrimac included a revolving gun turret.
b. the monitor included a revolving gun turret.
c. they were the same, designed and built by the same company.
d. the monitor included multiple stations along both sides for rapid fire exchanges.

Correct

B. The Monitor included a revolving gun turret.

The battleship Monitor designed by John Ericson stood out for having an armored rotating turret in which two 11-inch guns were installed. The Battleship Monitor was one of the most innovative ships of all time.

a because i tried to vote with just my college id and the answer was no

i dont have that book