The correct answer is A. A destructive event
Explanation:
Hard sci-fi or hard science fiction is a sub-category of fiction whose main focus is to understand objectively and from a scientific perspective the world or events or it. This means science fiction works usually include fiction elements that follow scientific logic in contrast to fantasy which implies hard sci-fi relies on real scientific advancements and discoveries. Additionally, as the focus is science subjective perspectives such as feelings, opinions or personal judgments are not the main purpose in hard sci-fi.
Considering this, if the bombing of Hiroshima and Nagasaki was considered from hard science fiction perspective the focus would be the way the bomb worked, how it was created and the effects of it not in terms of feelings but in the number of lives lost, effects on the environment and others. Thus, from hard sci-fi, the bombing of Hiroshiman and Nagasaki is viewed just as a destructive event as it does not focus on the feelings or reactions but on the reality, and according to science, this event had multiple destructive effects.
