Which of the Following Is True

Which of the following is true?

A) the model for sport as we know it was firmly in place by the late 1800s.
B) the demographic, technological, and philosophical changes that occurred in 19^th century America . were reflected in the way Americans behaved and thought about sport and play.
C) Sport and recreational activities helped to accommodate urban lifestyles and mitigate against the unhealthy effects of living in the city.
D) technological advances and innovations were used in the world of sports as much as in any other cultural arena.
E) All of the above.