It 's a long way to be sustainable country in China . but these nice persons action will change China for sustainable country all over the world . I will walk through China and all over the world not only for China for our earth .

Question: What may be the reason for this person walking through China ?
Answer: None of the above choices .They want to save money by walking on foot .They like to walk rather than using a car .They want to refrain from using cars .