In The Story of My Life, Chapter 7, a central idea is that Helen Keller's teacher, Miss Sullivan, is a gifted and effective teacher. She changes Helen's life. Which passages from the text support this idea?

Select all that apply.

The Story of My Life, Chapter 7

A. I cannot explain the peculiar sympathy Miss Sullivan had with my pleasures and desires. Perhaps it was the result of long association with the blind. Added to this she had a wonderful faculty for description.
B. At the beginning I was only a little mass of possibilities. It was my teacher who unfolded and developed them.
C. Arithmetic seems to have been the only study I did not like. From the first I was not interested in the science of numbers. Miss Sullivan tried to teach me to count by stringing beads in groups. …
D. It was my teacher's genius, her quick sympathy, her loving tact which made the first years of my education so beautiful.