A Survey Question Asked Students "How Many Hours of TV

A survey question asked students "How many hours of TV do you watch per week?" Using their responses, we want to estimate the difference in mean hours between high school and middle school students. We should use a:

A) matched pairs t-interval
B) 1-sample t-interval
C) 1-proportion z-interval
D) 2-sample t-interval
E) 2-proportion z-interval