Explanation:

Correct option 5: Hiroshima

The first nuclear bomb was dropped on Hiroshima, Japan, on August 6, 1945, during World War II. The bomb, named "Little Boy", was dropped by the United States from a B-29 bomber called Enola Gay. This event marked the first use of a nuclear weapon in warfare, leading to massive destruction and loss of life.

Three days later, on August 9, 1945, the U.S. dropped a second nuclear bomb, "Fat Man", on the city of Nagasaki, Japan, leading to Japan's eventual surrender and the end of World War II.