2. If the real numbers $x \cdot y$ satisfy $(x+5)^{2}+(y-12)^{2}=14^{2}$, then the minimum value of $x^{2} + y^{2}$ is ( ).
A. 2
B. 1
C. $\sqrt{3}$
D. $\sqrt{2}$
2. B
$(x+5)^{2}+(y-12)^{2}=14^{2}$ is a circle with center $C$ $(-5,12)$ and radius 14. Let $P$ be any point on the circle $L$. Then $|O P|=|C P|-|C C|=14-13=1$.

When points $C$, $O$, and $P$ are collinear, the equality holds, so the minimum value of $P$ to point $O$ is 1, hence the answer is $B$.