Why do few revelers enter the black room in The Masque of The Red Death? A.
The effect of the light is appalling.

B.
The color of the windows does not match the decorations.

C.
The other people who enter it always leave immediately.

D.
The light is unable to penetrate it.

the answer is see the other people who enter it always leave immediately

Explanation:

The the black room also known as the seventh room is a black room with red windows also in the room stands a Ebony clock most guests however avoid the final black and red room because it contains both the clock and an ominous ambienceand at midnight it is believed the new guest appears dressed more ghoulishly than his counterparts

the answer is d: message a character's thoughts