Magnitude of vector which comes on addition of two vectors, \[6\hat{i}+7\hat{j}\] and \[3\hat{i}+4\hat{j}\] is [BHU 2000]

• A.      \[\sqrt{136}\]   
• B.      \[\sqrt{13.2}\]
• C.      \[\sqrt{202}\]   
• D.      \[\sqrt{160}\]