27. Which of the following statement is FALSE? (A) Ecological conservation includes protecting the natural habitats, the endangered species and local communities. (B) Ecotourism has become a popular trend of travel around the world and more people join this kind of activity. (C) Travelers of ecotourism not only learn more about environmental protection but also collect trash themselves. (D) The meaning of green travel may be similar to the concept of ecotourism.