Find the Limit of the Function by Using Direct Substitution $\lim _ { x \rightarrow a } \frac { x ^ { 2 } - 2 x - 15 } { x + 3 }$

Multiple Choice

Find the limit of the function by using direct substitution.
- $\lim _ { x \rightarrow a } \frac { x ^ { 2 } - 2 x - 15 } { x + 3 }$

A) $x - 5$
B) $a + 3$
C) $a + 5$
D) $a - 5$