The story's setting immediately establishes an eerie, suspenseful mood. what details does the author use to do this? a. the calmness of the sea is contrasted with jagged cliffs and windy precipices on the island. b. as he makes his way to the chateau, rainsford hears many large animals moving through the underbrush. c. the air is thick, as if before a storm, and the night is so dark that rainsford thinks he could sleep with his eyes open. d. the moans of frightened sailors carry over the waters.

C. The air is thick, as if before a storm, and the night is so dark that Rainsford thinks he could sleep with his eyes open.

Explanation:

The air is thick, this sets the eerie feeling of the story´s setting, you can imagine the thick air surrounding the characters and how that affects the setting how that gets a suspensful feeling, then the author adds, the night is so dark that he could sleep with his eyes open, this gets the suspense needed to create an eerie and suspenfil mood in the story.

i believe it is the bright red satin shirt.

demonstrative would be the answer.