Tourism it brings in money to a country can also result in damage to the World Heritage s

问题补充：

Tourism, it brings in money to a country,can also result in damage to the World Heritage sites there.

A. because

B. as

C. while

D. since

答案：

A. because

B. as

(答案→)C. while

D. since

解析：句意：尽管旅游业给一个国家带来金钱，但它也能对那里的世界遗产带来损害。while相当于although。