If the Following Defines a One-To-One Function, Find Its Inverse $\left\{\left(-3, \frac{1}{2}\right),(-2,-3),\left(-\frac{1}{3}, 2\right),\left(-9, \frac{3}{8}\right)\right\}$

Multiple Choice

If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one."
- $\left\{\left(-3, \frac{1}{2}\right) ,(-2,-3) ,\left(-\frac{1}{3}, 2\right) ,\left(-9, \frac{3}{8}\right) \right\}$

A) $\left\{\left(\frac{1}{2}, 3\right) ,(-3,2) ,\left(2, \frac{1}{3}\right) ,\left(-\frac{3}{8},-9\right) \right\}$
B) $\left\{\left(\frac{1}{3},-3\right) ,(-3,-2) ,\left(2,-\frac{1}{2}\right) ,\left(\frac{3}{8},-9\right) \right\}$
C) Not one-to-one
D) $\left\{\left(\frac{1}{2},-3\right) ,(-3,-2) ,\left(2,-\frac{1}{3}\right) ,\left(\frac{3}{8},-9\right) \right\}$