【单选题】

John JamesAudubon was born in 1785 and died in 1851, but his name is still spoken every day.Andubon was a scientist who loved nature. He wanted to show people the importance of nature in their lives. He was especially interested in birds, and painted many pictures of them.

In 1905, the NationalAudubon Society was formed by people who were also interested in birds and wanted to continueAudubon’s nature studies.Even now when people think of theAudubon Society, they usually think of birds.But the society does other things besides watching birds.
The members of the Society try to improve the environment as much as they can. They have helped pass many laws that protect birds and animals, and people, too. They taught young people how to protect their environment. They try to make their own communities cleaner, better places to live in.
John JamesAudubon knew that nature was important. He did not know how important his work would become.
How did the members of the Society try to improve the environment
A、They made laws that protect birds.
B．They taught young people, helped pass laws that protect animals and so on.
C．They tried to make the world better.
D．BothB、andC、