Theprojection of the vector \( \hat{i}-2 \hat{j}-\hat{k} \) on the vector \( 4 \hat{i}-4 \hat{j}...

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Theprojection of the vector \( \hat{i}-2 \hat{j}-\hat{k} \) on the vector \( 4 \hat{i}-4 \hat{j} \)
\[
+7 \hat{k_{i}}
\]
(A) \( \frac{5 \sqrt{6}}{10} \)
(B) \( \frac{19}{9} \)
(C) \( \frac{9}{19} \)
(D) \( \frac{\sqrt{6}}{19} \)
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