Read the excerpt below from act 1.3 of The Tragedy of Julius Caesar and answer the question that follows.
CASCA:
A common slave—you know him well by sight—
Held up his left hand, which did flame and burn
Like twenty torches joined; and yet his hand,
Not sensible of fire, remained unscorched. . . .
And there were drawn
Upon a heap a hundred ghastly women,
Transformèd with their fear, who swore they saw
Men all in fire walk up and down the streets.
And yesterday the bird of night did sit
Even at noonday upon the market-place,
Hooting and shrieking. . . .
For I believe they are portentous things
Unto the climate that they point upon.

portentous – adj. Predicting the future.

what is the meaning of the symbol "the bird of night" as indicated in the excerpt above?
a. the night bird is a caged animal roaming free, symbolizing the conspirators wanting to roam free as well.
b. the night bird is shrieking, symbolizing a warning to caesar.
c. the night bird appears at noon, symbolizing that rome has a darkness hanging over it.
d. the night bird symbolizes the hope that light will dispel the darkness of rome.