This question i based on William Shakespeare''s Macbeth.

''This supernatural soliciting

Cannot be ill, cannot be good. If ill,

Why hath it given me earnest of success,...

What does the phrase ''earnest of success'' refer to?

• A.Macbeth becoming thane of Cawdor
• B.Banquo''s children becoming future kings
• C.Macbeth becoming king
• D.Banquo''s wearing of the crown
• E.