Ecotourism Is Becoming a Very Popular Option, Unfortunately Ecotourism Can

Ecotourism is becoming a very popular option, unfortunately ecotourism can have negative effects on the ecosystem involved. Which choices is a possible positive ecological effect of ecotourism

A) Tourists may care more about saving an eco system they have personally experienced and enjoyed
B) Ecotourism can provide much needed income for paarer countries
C) Join in the tourisum industry can be created for the people living in the tourists zone
D) Infrastructure, such as electricity, water and sewage, can be supplied to native people as wll as tourist