Nagasaki Day is observed annually on ______ date ?

1) August 8
2) August 9
3) August 7
4) August 6

Explanation:
Nagasaki Day was observed on August 9, 2019. On this day, the United States had dropped an atomic bomb known as “Fat Man” on Nagasaki city of Japan in 1945 during World War II. The first bomb nicknamed ‘Little Boy’ was dropped on the city of Hiroshima, Japan on 6 August 1945. 2019 marks the 74th anniversary of the disastrous event.