Evaluate the following limit$.$

$\underset{x}{lim}(7\frac{104}{x}\frac{si{n}^2{x}^6}{x^3})$

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

A$.\underset{x}{lim}(7\frac{104}{x}\frac{si{n}^2{x}^6}{x^3})=$

$$ B$.$ The limit does not exist and is neither $-$ nor $.$