If X = 5 Sin θ,Use Trigonometric Substitution to Write $\sqrt { 25 - x ^ { 2 } }$

Multiple Choice

If x = 5 sin θ,use trigonometric substitution to write $\sqrt { 25 - x ^ { 2 } }$ as a trigonometric function of θ,where $- \frac { \pi } { 2 } < \theta < \frac { \pi } { 2 }$ .

A) ​5 sin θ
B) ​5 cos θ
C) ​5 tan θ
D) ​5 csc θ
E) ​5 sec θ