Find the Limit If It Exists $$\lim _ { x \rightarrow 8 } \sqrt { 2 x + 21 }$$

Multiple Choice

Find the limit if it exists.
- $$\lim _ { x \rightarrow 8 } \sqrt { 2 x + 21 }$$

A) $\sqrt { 5 }$
B) $- \sqrt { 5 }$
C) $- 5$
D) 5