A \( \frac{1}{2} \left ( 2 \hat{i} + \hat{j} - 2 \hat{k} \right ) \)
B \( \left ( 2 \hat{i} + \hat{j} - 2 \hat{k} \right ) \)
C \( \frac{1}{4} \left ( 2 \hat{i} + \hat{j} - 2 \hat{k} \right ) \)
D \( \frac{1}{3} \left ( 2 \hat{i} + \hat{j} - 2 \hat{k} \right ) \)