What conclusion about Charlie is most clearly supported by this excerpt from the first section of “Flowers for Algernon”?

I hope they use me. Miss Kinnian says maybe they can make me smart. I want to be smart. My
name is Charlie Gordon. I am 37 years old and 2 weeks ago was my brithday. I have nuthing
more to rite now so I will close for today.

A. He cannot control his temper.
B. He has below-average intelligence.
C. He sees and hears things that are not there.
D. He cannot hold down a job and support himself.