It represents Lady Macbeth's malaise and guilt awakening and driving her to insanity. In this scene, she "sees" blood on her hands, a metaphor for her guilt, and it cannot be washed off- the sin cannot be undone. After this scene, Lady Macbeth's strength runs out and is overcome with guilt to the point that she commits suicide.
Answer:B. to persuade readers of the seriousness of the American Civil War
Explanation: "about 620,000 soldiers had died on the battlefields, more than American battle deaths in all other wars from the Revolution through the Vietnam War"
The fact that he states how many soldiered have died in this war and how great and alarming this number is when compared to any other wars that America has ever had , shows us that he wants to persuade readers to actual grasp how serious this war is , looking at the lives it has taken .
Dear father, I am writing you today to ask for more money for an excursion I would like to go on. I am willing to do some house or yard work for you in order to repay you after I return home. I would like more money as I have found something I would like do, but I am unable to pay for it on my own. Thank you so much,
Your child