Answer:
I don't think this is correctly punctuated
Explanation:
Gently because it describes the degree at which someone is tapping on the window sill, and that's what adverbs do, they describe a a verb by many different factors.
The script, or text of a play contains B. dialogue and stage directions.
The author writes stage directions so both the actors and the audience know what is going to happen and to set the stage better. A play without dialogues (or monologues) is not possible, is it?