Each letter represents a different digit. The same letter represents the same digit. The digits A and B respectively are _______. \[\begin{align} & \,\,\,\,\,A\,\,A\,\,A \\ & \,\underline{\,\,\,\,\times \,\,\,\,\,\,\,\,\,6} \\ & 1\,\,B\,\,B\,\,A \\ \end{align}\]

• A.  5, 4  
• B.  4, 3  
• C.  3, 2   
• D.     2, 3