Which strategies did Operation Overlord primarily employ?

A.
trench warfare and ground troops

B.
paratroop drops and amphibious landings

C.
the atomic bomb and demands for surrender

D.
widespread bombings and submarine attacks

B. Paratroop drops and amphibious landings. Operation Overlord was the codename for the Allied invasion of Normandy, France, during World War II on June 6, 1944. Paratroop drops were used to secure strategic points behind enemy lines while amphibious landings were employed to bring a massive force onto the beaches of Normandy.