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