4. What are Macbeth's arguments to himself against killing Duncan? -a. Macbeth is Duncan's kinsman and subject. Duncan is a good and popular king;
his death would bring sorrow to Scotland.
-b. There are too many witnesses in the castle. He could never get away with it.
-c. Macbeth doesn't really have the ambition to be king. He is doing this to please
his wife. He may be able to change her mind.
-d. If anyone found out he did it, they would just kill him. He is better off being a
Thane and being alive.