They highlight the disruption of the natural order caused by Macbeth's crime.
When Macbeth killed King Dunken who was the most virtuous king, the whole world lamented for his uncertain death. Everything in the kingdom got disrupted and even the animals and nature seemed to behave in a much different way as they used to. The killing of an owl by a falcon which is a much smaller bird than the eagle symbolizes the murder of King Dunken by Macbeth. The eating of the horse by another horse gives a symbolic meaning about Macbeth’s plan to kill Banquo, who were great friends.
The setting of the play is set in the Royal Court of Denmark which was the seat of power during the late middle ages. The whole feel of the play also screamed middle ages. There are also allusions to the Protestant Reformation which only happened during the late middle ages.
To win the fight and get power
I'm pretty sure that the answer is C
