The correct answer is D. Horse Racing.
A steeplechase is a type of horse race over obstacles, such as fences and ditches. The term comes from the fact that the obstacles are often modeled after church steeples.
Boxing is a combat sport in which two people, usually wearing protective gloves, throw punches at each other for a predetermined number of rounds.
Chess is a two-player board game played on a checkered board with 64 squares arranged in an eight-by-eight grid. The game is played by millions of people worldwide.
Rowing is a water sport in which boats are propelled by oars. It is a popular recreational activity and is also an Olympic sport.