What does the following code display?

int main$()$

$\{$

double price $=12\mathrm{.}99$;

cout.setf$($ios::fixed$)$;

cout.setf$($ios::showpoint$)$;

cout.precision$(2)$;

double tax $=$ price $*\mathrm{.}062$;

cout $$ "Tax charged is $$"$ tax endl;

$\}$

Tax charged is $$0\mathrm{.}8$

Tax charged is $$0\mathrm{.}80$

Tax charged is $$0.$

Tax charged is $$0\mathrm{.}80538$