Correct Answer: Option C

Explanation

The unit vector \(\hat{n} = \frac{\overrightarrow{r}}{|r|}\)

\(\hat{n} = \frac{-5i + 12j}{\sqrt{(-5)^{2} + (12)^{2}} \)

= \(\frac{-5i + 12j}{13} \)

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