We have to use the distance formula
[tex]d=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Let's replace the points (-5,4) and (3,-2).
[tex]\begin{gathered} d=\sqrt[]{(3-(-5))^2+(-2-4)^2} \\ d=\sqrt[]{(3+5)^2+(-6)^2}=\sqrt[]{8^2+36} \\ d=\sqrt[]{64+36}=\sqrt[]{100} \\ d=10 \end{gathered}[/tex]
Hence, the answer is C. 10 units.
