The Graphing Calculator Screen Shows the Graphs of the Two $$\begin{aligned}& y=-\frac{1}{3} x^{2}+5 \\& x-y=1 \\\end{aligned}$$

Multiple Choice

The graphing calculator screen shows the graphs of the two given functions, and the display gives the coordinates of one of the solutions. Find the other solution.
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$$\begin{aligned}& y=-\frac{1}{3} x^{2}+5 \\& x-y=1 \\\end{aligned}$$

A) $(-7,-6)$
B) $(-6,-7)$
C) $(6,7)$
D) $(-5,-8)$