A boat is moving with a velocity \[3\hat{i}+\text{ }4\hat{j}\]with respect to ground. The water in the river is moving with a velocity \[\text{ }3\hat{i}4\hat{j}\] with respect to ground. The relative velocity of the boat with respect to water is [CPMT 1998]

• A.                 \[8\hat{j}\]        
• B.                 \[\text{ }6\hat{i}\text{ }8\hat{j}\]
• C.                 \[6\hat{i}+8\hat{j}\]
• D.                             \[5\sqrt{2}\]