If \[\underline{\begin{align} & \underline{\begin{align} & \text{ 1 A B} \\ & \text{+ C C A} \\ \end{align}} \\ & \,\,\text{ 6 9 7} \\ \end{align}}\] and there is no carry on addition, then the value of B is _____.

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