Exponential form of \[{{a}^{5}}\times a\times a\times {{b}^{3}}\times {{b}^{2}}\] is

• A.  \[{{b}^{7}}{{a}^{5}}\]   
• B.  \[{{a}^{7}}{{b}^{5}}\]
• C.  \[{{(ab)}^{7}}\]      
• D.  \[{{(ab)}^{5}}\]