${\displaystyle \underset{-}{\overset{}{}}}\frac{dx}{x^{2}324}$

Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

A$.{\displaystyle \underset{-}{\overset{}{}}}\frac{dx}{x^{2}324}=($Type an exact answer, using $x$ as needed.$)$

B$.$ The improper integral diverges.