Find the absolute extrema if they exist, as well as all values of $x$ where they occur, for the function $f(x)=2x^4-144x^2-1$ on the domain $-7,7.$

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

A$.$ The absolute maximum is $,$ which occurs at $x=($Round the absolute maximum to two decimal places as needed. Type an exact answer for the value of $x$ where the maximum occurs. Use a comma to separate answers as needed.$)$

B$.$ There is no absolute maximum.