It would be A because B is a dependent clause
Explanation:
Lady Macbeth hears an owl and crickets. Macbeth hears the guards praying and a voice saying " sleep no more, Macbeth murders sleep.. Macbeth will sleep no more."
I'd say that 'every' is the adjective you are looking for. It specifies the noun 'light'.
I’m not sure. Sorry I couldn’t help.