Final answer:
The sentence from the article that provides the best support is about the positive effects of theatre programs in improving the self-esteem of teenage prisoners.
Step-by-step explanation:
The sentence from the article that provides the best support for the statement is: 'Theatre practice is associated with helping the incarcerated to develop social skills, renewed self-confidence and a sense of their own worth, positive attitudes, and behavioral changes.' This sentence highlights the positive effects of theatre programs in improving the self-esteem of teenage prisoners. By participating in theatre programs, prisoners can develop social skills, gain renewed self-confidence, and have positive behavioral changes, all of which contribute to improving their self-esteem.