Yang Shanzhou has been planting trees in mountainous areas for 22 years, and built a forest farm with an area of 80,000 mu and a value of more than 300 million yuan, which was handed over to the state free of charge. His noble sentiments are concentrated. A

This question has nothing to do with the law, so B is excluded. This question involves Yang Shanzhou's personal behavior and has nothing to do with the team, so C is excluded. Yang Shanzhou has planted trees for a long time, with a large area, many contributions and no innovation, so D is excluded. In this topic, Yang Shanzhou volunteered to plant trees for a long time, which reflected his sense of responsibility. The forest farm was given to the country free of charge, which reflected the spirit of dedication, so he chose A.