Find the Limit of the Sequence If It Converges; Otherwise $$a _ { n } = n - \sqrt { n ^ { 2 } - 18 n }$$

Multiple Choice

Find the limit of the sequence if it converges; otherwise indicate divergence.
- $$a _ { n } = n - \sqrt { n ^ { 2 } - 18 n }$$

A) $\sqrt { 18 }$
B) 0
C) 9
D) Diverges