I believe the answer is A
Something mysterious happened. It builds tension making the reader want to read more.
B. a mug of hot tea; renames this
<span>Appositive is noun or noun phrase in which retitles, renames and helps describe the noun that is adjacent to it in the sentence. The appositive is like a more clear illustration or wants to illuminate the said subject in the statement.
<span>1. The appositive word in the sentence is the author. Which describes and renames Gary Jackson in the sentence</span> </span> <span>
2. It renames Charles Dickens.</span><span> </span>
In my point of view and opinion, I think that the poet is trying to encourage the reader to examine the poet carefully because the poet wants the reader to understand the point of the poet. What the poet connects to and what is the meaning behind the poet that is written. Hope This Helps!!