Find the values of the trigonometric functions of $t$ if $\sec t = 2$, and the terminal point of $t$ is in quadrant IV.
$\sin t = - \frac{\sqrt{3}}{2}, \cos t = \frac{1}{2}, \tan t = - \frac{\sqrt{3}}{3}, \cot t = - \sqrt{3}$
$\sin t = - \frac{\sqrt{3}}{2}, \cos t = \frac{1}{2}, \tan t = - \sqrt{3}, \cot t = - \frac{\sqrt{3}}{3}$
$\sin t = \frac{\sqrt{3}}{2}, \cos t = \frac{1}{2}, \tan t = \sqrt{3}, \cot t = \frac{\sqrt{3}}{3}$
