The correct answer is D. fiction.
A fact is something that is true or real. A fable is a short story that teaches a moral lesson. A story is a narrative account of events. An illusion is a false or misleading perception. Fiction is a work of imaginative literature.
A fact is something that is true or real. It is something that can be proven or verified. A fable is a short story that teaches a moral lesson. It is often set in a time and place that is not real, and the characters are often animals. A story is a narrative account of events. It can be fiction or non-fiction. An illusion is a false or misleading perception. It can be caused by optical illusions, hallucinations, or other factors. Fiction is a work of imaginative literature. It is not based on real events or people.
In the context of the question, the antonym of fact is fiction. This is because fiction is a work of imagination, while a fact is something that is true or real.