As a Business Owner, I Have Requested My Staff to Develop

As a business owner, I have requested my staff to develop a set of dashboards that can be used by the public to show wait time at each of my four local coffee shops at peak times during the day and whether the time is short, medium, or long. Which of the following graphical displays would be the best choice?

A) bullet graph
B) sparkline
C) treemap
D) gauges