Answer the following question, with explanation first.
People gather where to watch large four-legged animals run?\nOptions:\n- populated areas\n- opera\n- race track\n- roadblock\n- at the foot path

race track
Animals are trained to race eachother for sport.

These animals race on the racetrack.

People gather at the racetrack to watch them race eachother.

.

So, the answer is race track