Find the Unit Vector in the Direction of the Given $\mathbf { u } = \langle 2,1 \rangle$

Multiple Choice

Find the unit vector in the direction of the given vector. Write your answer in the indicated form.
-Let $\mathbf { u } = \langle 2,1 \rangle$ . Find the unit vector in the direction of $\mathbf { u }$ , and write your answer in component form.

A) $\langle 1,1 \rangle$
B) $\left( \frac { 2 } { 3 } , \frac { 1 } { 3 } \right)$
C) $\left| \frac { 2 } { \sqrt { 5 } } , \frac { 1 } { \sqrt { 5 } } \right|$
D) $\left( \frac { 2 } { 5 } , \frac { 1 } { 5 } \right)$