I think the first one paraphrases it best.
The one that answered is ur answer
Macbeth kills young Siward in battle and finds out that Macduff was not born of a woman. A Scottish army is heading towards Birnam Wood to join Malcolm and his English army. Malcolm arrives with the Scottish and English troops at Dunsinane. Macduff kills Macbeth and cuts off his head.
I don’t know. genes maybe? ??