The correct answer is A.
The author does not allude the visitor as being Herbert. He merely call it "the thing outside". Therefore, this is not a way the author creates suspense in the story.
The rest of the options: the description of the scraping, the echoes of the knocks, and the difficulty to find the object that was needed, are all elements that help build up suspense in this passage.
"Bestowing" means confer or present something to another, usually an honor, right, gift, or an item special to someone.
In Romeo and Juliet, another possible reason for the Prince's reluctance to follow through on the sentence of death that he has proclaimed for anyone who disturbs the peace of the streets of Verona is that he may reason that his putting of Romeo to death may ignite more feuding and simply perpetuate the hatred between the Montague and Capulet family. For, since he knows that already three civil brawls have erupted from only "an airy word" and caused Verona's senior citizens to take out their old weapons and resume their fighting, the Prince may feel that banishment for Romeo is preferable.
that's just for answer 1