In Chapter 9 of "The Story of My Life," Helen Keller expresses a mix of emotions regarding her visit to the Perkins Institution for the Blind. She is particularly inspired and proud of the accomplishments of other blind people she encounters there. This sense of pride comes from recognizing their achievements and the possibilities that exist for individuals with disabilities, which motivates her in her own educational journey. Therefore, the most accurate response would be:
Keller is proud when she realizes the accomplishments of other blind people.