Correct option is C
Information Booster:
D-Day refers to the Allied invasion of Normandy during World War II, which marked the beginning of the end for Nazi Germany in Western Europe.
Date: 6 June, 1944
Operation Name: Operation Overlord
Significance: It was the largest seaborne invasion in history and a turning point in World War II.
Forces Involved: Allied troops from the United States, United Kingdom, Canada, and other nations landed on the beaches of Normandy, France.