"the prince of cumberland! that is a step on which i must fall down, or else o'erleap, for in my way it lies. stars, hide your fires; let not light see my black and deep desires . ." why does shakespeare use an aside for these lines from macbeth? a. it allows the audience but not the other characters to hear of macbeth's secret ambition. b. it gives lady macbeth insight into her husband's true feelings, despite what he says to the contrary. c. it provides an opportunity for a long speech in which macbeth makes his future plans clear. d. it advances the plot by changing the scene, thereby allowing macbeth to move from one setting to another.