Using the Figure Below, If $\theta$ = 20° and Y = 16, Determine the Exact Value

Multiple Choice

Using the figure below, if $\theta$ = 20° and y = 16, determine the exact value of r.

A) $r = \frac { 5 } { \cos 4 ^ { \circ } }$
B) $r = \frac { 16 } { \cos 20 ^ { \circ } }$
C) $r = \frac { 4 } { \csc 5 ^ { \circ } }$
D) $r = \frac { 16 } { \tan 20 ^ { \circ } }$
E) $r = \frac { 16 } { \sin 20 ^ { \circ } }$