In each of the following equations, determine which variable represents the angle and which variable represents the value of the trigonometric function.

(a) In the equation $c=\sin p$, represents the angle and represents the value of the trigonometric function.

(b) In the equation $d=\tan^{-1}q$, represents the angle and represents the value of the trigonometric function.

(c) In the equation $\arccos s=p$, represents the angle and represents the value of the trigonometric function.