阅读理解。阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。
(2014·濮阳模拟)
Our world natural park is one of the most famous parks in the world. Millions of visitors from different countries visit this park every year. In order to protect it, please do as follows:
◆Protect the natural and cultural heritage. Don’t damage or deface any buildings, displays and other facilities. Take care of all plants. Put rubbish in the bins provided.
