Suppose That $\theta$ Is in Standard Position and the Given Point Is on Point

Multiple Choice

Suppose that $\theta$ is in standard position and the given point is on the terminal side of $\theta$ . Give the exact value of the indicated trig function for $\theta$ . Rationalize the denominator if necessary. If the function is undefined, say so.
-(0, -1) ; find tan $\theta$

A) 0
B) Undefined
C) 1
D) -1