A、To prevent patients from smoking. B、To better understand patients. C、To get patients occupied. D、To teach patients some skills

In Dakar, mental patients attend regular art treatment classes to help treat mental disorders. The treatment can be a useful technique to make up traditional forms of mental treatment. Psychiatrists in the Senegalese capital’s main hospital see it as an essential part of the healing process. Art as mental treatment is still relatively new in Senegal. Dr. Tabara Sylla, the hospital’s chief psychiatrist, uses art treatment, medication and classical forms of mental treatment in her practice, treating everything from chronic depression to alcohol abuse and schizophrenia. At first the project started as a way to keep patients busy in the afternoon, rather than have them sitting around smoking. It soon became clear that art was creating a communication bridge between patient and doctor. More and more now, she says, art workshops have become essential treatment—so much that she cannot imagine this psychiatric unit without them.
1. According to the news item, which one is not included in the problems that doctors use art treatment to treat?
2. Why did doctors introduce art treatment in the first place?