The tone that the phrase conveys is very angry towards the system.
For question 1, I believe it is B.
For question 2, I think it is B too.
I might get this wrong tho.
If you read each of these, or speak them, there is only one that suits the sentence correctly.
Go with the third one. Couldn't seems to fit pretty well there.
As we know Curley's wife id terribly lonely in spite of his reservations the wife still wants to go and have time to spend and talk to with someone so she chooses Lennie. She insists Lennie because she knows Lennie will talk to her!
Hope this helps
D is the answer to this question...