I would say neutral, it's definition is "a ridiculous but amusing person; a clown."
Don't quote me on this, I'm not 100%.
The sentence that uses commas correctly is option B. I have not yet been to a concert, in fact. One of the rules in using comma is, it is used to set off clauses, or phrases that are not essential in the sentence or does not affect the thought of the sentence. The rest of the choices either lack commas or the commas are misplaced.
If you look it up in the dictionary it’s Visible
Simile. This is because a Simile uses words like and as and they are comparing two things. Like is included in his sentence: “This was such a big leap in logic, between what I said and what he said, that I thought we were (like) two people standing on separate mountain peaks.." The narrator is comparing themself and the other character with "two people standing on seperate peaks"
Hope this helps you
Have a great day