Whenever certain program has a limited number of spaces, they implement "Competitive Admission". Students should have besides the normal requirements of the institution and the program, extra information. This may include, academic standing, essay and personal interview, GPA, sports participation, letters of recommendation, etc
I believe it is C. Try and think about where you would naturally pause, you wouldn't say "Tourists in Mexico *pause* enjoy eating the rich, delicious food."
All types of media mush consider the rating system however TV is solely based. If the amount of views goes down on a TV show, it is pulled from publicity.