Macbeth’s feelings of emptiness in the play’s final act helped develop one of its major themes since it shows that runaway ambition, in addition to being destructive, can never be satisfied. Option C is correct.
Macbeth is profoundly depressed and feels that life is absurd and pointless. He determines that life is void of meaning. The death of his beloved wife, in addition to his guilt and mental agony, made Macbeth feel indifferent.
agitation means a state of anxiety or nervous excitement.so that is the only word i can see with a nervous meaning. I could be wrong but i hope this helped! :3