Find all values $\backslash (\backslash$mathrm$\{$x$\}=\backslash$mathrm$\{$a$\}\backslash )$ where the function is discontinuous.

$\backslash [$

f$($x$)=3$ x$^\{2\}+3$ x$-2$

$\backslash ]$

Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A$.$ The function f is discontinuous at $\backslash (\backslash$mathrm$\{$x$\}=\backslash )$

$($Use a comma to separate answers as needed.$)$B$.$ The function f is continuous for all values of x $.$