There is great potential in China for specialized tourism, focus

There is great potential in China for specialized tourism, focusing on ethnic groups and ____ adventure.
A、environmental
B、minority
C、mountain
D、rural
【正确答案】：A
【题目解析】：A. environmental（环境的）：这个形容词用来修饰“adventure”时，可以理解为“环境冒险”，即与自然环境相关的冒险活动，如徒步穿越、攀岩、漂流等。这与中国丰富的自然资源和生态多样性相契合，符合特种旅游的定义。