If the circle $x^2 + (y+2)^2 = r^2$ $(r > 0)$ has exactly 2 points at distance 1 from the line $y = \sqrt{3}x + 2$, then the range of $r$ is A. $(0,1)$ B. $(1,3)$ C. $(3, +\infty)$ D. $(0, +\infty)$
If the circle $x^2 + (y+2)^2 = r^2$ $(r > 0)$ has exactly 2 points at distance 1 from the line $y = \sqrt{3}x + 2$, then the range of $r$ is\\
A. $(0,1)$\\
B. $(1,3)$\\
C. $(3, +\infty)$\\
D. $(0, +\infty)$