When the first act opens, Bernardo appears to relieve Francisco from duty, but it is so dark they both fearfully call out "who's there?" until they realize it's just guardsmen. We find out that the guardsmen have been spotting the ghost of King Hamlet.
B.
This description was probably used for comic relief.
A flat character is a character who is 2 dimensional and does not change throughout the story/book. Hope this helped! Have a great day! :)
I’ll help with bottom pics 1r 2f 3r 4f 5r