What is the difference between the greatest and least numbers of \[\frac{5}{9},\frac{1}{9}\] and \[\frac{11}{9}\] ?

• A. \[\frac{2}{9}\]                                   
• B. \[\frac{4}{9}\]
• C. \[\frac{10}{9}\]                  
• D.        \[\frac{2}{3}\]