Critical reading the following question is based on your reading of macbeth, act iv. after visiting the witches in act iv of the tragedy of macbeth, why does macbeth initially change his mind and decide not to have macduff killed? a. he is reassured by the third apparition. b. he knows macduff has fled to england. c. he believes the witches will protect macduff. d. he decides instead to kill macduff’s wife.