The H.C.F of \[\frac{2}{5},\frac{6}{25}\] and \[\frac{8}{35}\] is

• A.  \[\frac{p}{q};p,q\in I,\]                                  
• B.  \[q\ne 0\]
• C.  \[\sqrt{3}\]                 
• D.  \[\sqrt{3}\]