A. World Cancer Day
B. World wetlands day
C. World Radio Day
D. World Post Day
✅ The correct answer is option D.
World Postal Day is celebrated on 9 October every year to raise awareness among people about the role of the postal sector for people and businesses every day.
World Postal Day is celebrated on 9 October every year to raise awareness among people about the role of the postal sector for people and businesses every day.