The introductory paragraph.
The answer: n + 8 where n is the variable
<span>C. She lives on the twentieth floor of an old apartment building somewhere in Manhattan.
This option is accurate since it contains articles and modifiers that are grammatically correct:
i) "the" is used before the word "twentieth" (a noun modified by ordering- i.e. first, second, third, and so on...)
ii) "an" is used before the word "old" (which begins with a vowel)
</span>
E. I’m very much sure that there is no Errors.
That perhaps Haimon is unstable if he’d kill someone if he can’t have them