What is true according to the passage?

Helen Keller lost her sight and hearing of a sickness at the age of 19 months, even before she had learned to talk. For the first seven years of her life she was like a wild animal. She wanted other people to communicate. Finally her parents sent for a teacher, Miss Ann Sullivan Ann taught her how to learn about the world through touch and smell and feeling, and eventually she became a teacher, a writer and lecturer.