The initial substitution of $x = a$ yields the form $\frac{0}{0}$. Simplify the function algebraically, or use a table or graph to determine the limit. If necessary, state that the limit does not exist.
$\lim_{x \to 19} \frac{x^2 + 3x - 418}{x^2 - 361}$
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. $\lim_{x \to 19} \frac{x^2 + 3x - 418}{x^2 - 361} = $ (Type an integer or a simplified fraction.)
B. The limit does not exist.