Find the direction cosines of the vector $\hat{i}+2 \hat{j}+3 \hat{k}$.
- A$\left(\frac{1}{\sqrt{14}}, \frac{2}{\sqrt{14}}, \frac{3}{\sqrt{14}}\right)$
- B$\left(\frac{1}{\sqrt{14}}, \frac{2}{\sqrt{14}}, \frac{4}{\sqrt{14}}\right)$
- C$\left(\frac{2}{\sqrt{14}}, \frac{1}{\sqrt{14}}, \frac{3}{\sqrt{14}}\right)$
- D$\left(\frac{3}{\sqrt{14}}, \frac{2}{\sqrt{14}}, \frac{1}{\sqrt{14}}\right)$
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