Answer:
The excerpt that uses first-person point of view to peek into the speaker’s mind is that C. I watched it closing in clean and untouched, transfixed.
Explanation:
i learnd it in class
Headings break down a passage into sections, subheadings creates smaller sections within a heading to help the reader more understand the passage.
The basic answer is it's a 5th.
The more complex answer is that it is a tritone because it is not a perfect 5th.