B, It's two independent clauses tied together using a conjunction.
I think that the awnser is : " B. Adverb" but not so sure
Answer:
It provides a clue that something tragic will happen to the lovers later as the story progresses.
Explanation:
According to the Friar Laurence´s poem, passion is very dangerous due to its intensity, this romance does not match with any kind of reality and might evolve to a very tragic end.
Because he wanted to improve his talent