The sentence finishes with a string of "wh-" noun clauses. These clauses usually are not thoughts, so the last 1 must also not be a matter. "Which a single could be the best" is clearly a question format, so it is sensible that " a piece of metal given in https://buypurecocaineonline33072.pages10.com/the-smart-trick-of-best-place-you-can-buy-copyright-that-nobody-is-discussing-72608267