Which excerpt from "Flowers for Algernon" shows that Charlie starts to view himself differently as he becomes smarter?

A. Dr Strauss say's I shud keep writing things down but I dont have to do it every day just when I think of something or something speshul happins. He says dont get discoridged because it takes time and it happins slow.
B. I wanted to race Algernon some more but Burt said that’s enough for one day. They let me hold him for a minit. Hes not so bad. Hes soft like a ball of cotton.
C. I think it's a good thing about finding out how everybody laughs at me. I thought about it a lot. It's because I'm so dumb and I don't even know when I'm doing something dumb.
D. Still didn't go into the factory. I told Mrs. Flynn my landlady to call and tell Mr. Donnegan I was sick. Mrs. Flynn looks at me very funny lately like she's scared.