Answer:
C. It's the ringmasters job to hold the show together. if something hour goes wrong they try there best to stall for time.
The answer is C. This is because the mind can make the body do anything, and the body can make the brain think certain things also. So basically the mind and the body play tag with each other on this topic.
I would say D. Fishing because of the ocean environment.
People adapt to great plain regions by locating a near by river because of food and shelter around a substantial stable ecosystems. Which allows high survivability ratings.