Find a Unit Vector in the Direction of the Vector $( - 2,11,0 )$

Multiple Choice

Find a unit vector in the direction of the vector described below. Initial point: (4,-6,-1)
Terminal point: (2,5,-1)

A) $( - 2,11,0 )$
B) $\sqrt { 13 } ( - 2,11,0 )$
C) $\sqrt { 125 } ( - 2,11,0 )$
D) $\frac { 1 } { \sqrt { 125 } } ( - 2,11,0 )$
E) $\frac { 1 } { \sqrt { 13 } } ( - 2,11,0 )$