Eery, spooky, quiet, silent, daunting, bristling, creaking
The correct answers are 1 and 2. The word protocol comes from a latin word referring to the first page of a book in which the content was written, it was adapted to english to refer to rules of conduct that rule any given thing. So a communication protocol will provide guidelines to the communication between the sender and the recipient of a message, this applies even when the message is shared between friends, relatives or coworkers.
Answer & Explanation:
The answer is written and explained in the attached picture.
Hope you like it :)
Gertrude is convinced Hamlet is still mad