Find the Unit Vector Having the Same Direction as V $\mathbf { u } = - 4 \mathbf { j }$

Multiple Choice

Find the unit vector having the same direction as v.
-v = -4j A) $\mathbf { u } = - 4 \mathbf { j }$
B) $\mathbf { u } = 16 \mathbf { j }$
C) $\mathbf { u } = - \frac { 1 } { 4 } \mathrm { j }$
D) $\mathbf { u } = - \mathbf { j }$