Which of the following scenarios is most likely to give the best approximation of the true probability of the event specified?
A. ask every member of your family if they enjoy the taste of Cheerios breakfast cereal
B. ask 5 friends to name their favorite flavor of ice cream
C. find 10 customers in line at a grocery store and ask them if they eat bananas on a regular basis
D. ask a sample of 250 high school students to name their favorite subject