Sorry i don’t know thisssssssssasssssss
Okay, so I am not going to write this whole thing for you, however I will compare and contrast the two.
Lady Macbeth
She really wants her husband to carry out the murders bc she is thirsty to be queen
Macbeth
Kinda hesitant to do it, questions if he can but let's his wife persuade him into doing it. After murdering Duncan, Macbeth kinda freaks out and leaves the daggers in Duncan's room and Lady Macbeth has to go back and fix her hubby's mistake
A. Wasn't.. This is because if you seperatevthe contractioninto two words it is was not, this would make the sentence be "Wally was not capable of lifting the heavy box."
If you were to do the same thing with weren't it would sound like "wally were not capable of lifting the heavy box." This does not make sense because "wally" is singular (so is "was not") and "were not" is pleural.
Hope this helps