Answer and Explanation:
The story prescribed in English text is non-fictional.
Non- is a prefix that means "no". So as an example, a nonzero number is any number but zero. A non-negative number is any number that isn't negative.
Something that is nonfictional is a work that narrates about real events, as opposed to fiction, which describes unreal or imaginary events.
Un- has a similar meaning, but the word "un-fictional" doesn't exist.
Pre- means "before", just like "prokaryote" means "before a nucleus". That sounds strange - pre-fictional?
Bi- means "two". For example, a binomial has 2 terms. Bi-fictional doesn't make sense either.
So I choose "non".
The story prescribed in English text is non-fictional.