Respuesta :

The witches help to seal Macbeth's fate through manipulation since they do not have the power to just kill him outright.

I hope this answer helps, if you have any other questions feel free to ask :)
Though the witches prophesied Macbeth's ascension to the throne, they did not necessarily manipulate him. However, their suggestion that both Macbeth and Banquo would rule precipitated Macbeth's ambitious moves.
ACCESS MORE
EDU ACCESS
Universidad de Mexico