Which one among the following is the greatest?\[{{5}^{-4}},\text{ }{{2}^{-4}},\text{ }{{3}^{-4}},\text{ }{{4}^{-4}},\text{ }{{6}^{-4}}\]

• A. \[{{5}^{-4}}~\]
• B. \[{{6}^{-4}}\]
• C. \[~{{2}^{-4}}~\] 
• D. \[~{{4}^{-\,4\text{ }~}}\]
• E.  None of these