Describe Macbeth's state of mind in Act 5. Give specific evidence to support your opinion.
a) He feels remorseful and guilty, evidenced by his soliloquies about the meaninglessness of life.
b) He remains resolute and determined, demonstrated by his relentless pursuit of power.
c) He becomes delusional and paranoid, shown through his hallucinations and erratic behavior.
d) He becomes apathetic and indifferent, as seen in his interactions with other characters.