$\text{A.}$ $\left(\frac{\sqrt{7}}{2}, \frac{7}{4}\right)$
$\text{B.}$ $\left(-\frac{\sqrt{7}}{2}, \frac{7}{4}\right)$
$\text{C.}$ $\left(\frac{7}{4}, \frac{\sqrt{7}}{2}\right)$
$\text{D.}$ $\left(\frac{7}{4}, \pm \frac{\sqrt{7}}{2}\right)$
$\text{E.}$
$\text{F.}$