2. Given that $z$ satisfies $|z+5-12 i|=3$. Then the maximum value of $|zi|$ is ( ).
(A) 3
(B) 10
(C) 20
(D) 16
2. D
$|z+5-12 i|=3 \Rightarrow z$ corresponds to points on the circle with center $(-5,12)$ and radius 3, therefore,
$$
|z|_{\max }=\sqrt{5^{2}+12^{2}}+3=16 .
$$