Use the Value of the Trigonometric Function to Find $\sec ( - t )$

Multiple Choice

Use the value of the trigonometric function to find $\sec ( - t )$ .​ $\cos ( - t ) = - \frac { 1 } { 6 }$ ​

A) $\sec ( - t ) = \infty$
B) $\sec ( - t ) = - \frac { 1 } { 6 }$
C) $\sec ( - t ) = - 6$
D) $\sec ( - t ) = \frac { 1 } { 6 }$
E) $\sec ( - t ) = 6$