The Focus of a Recent Survey Was Was on Teenagers

The focus of a recent survey was was on teenagers' familiarity with and use of modern technology.The teenagers were asked if they used each of the following technologies on a daily basis and if the technology was critically important to own.For each question,the percentage of those responding "Yes" is given.Subtracting the "Use daily" percentage from the "Critically important to own" percentage gives the "Importance Gap".Here are the results:
Which of the following displays is the most appropriate for these data?
I II

III

A) III
B) I
C) II
D) All of these displays are equally appropriate.
E) None of these displays are appropriate.