What is the output of the following code? #include virtual $-$Base$()=$ default; void f$($char const label$)$ const $\{$ std::cout $<<$ label $<<"$: Base

$"$; $\}$ virtual void g$($char const label$)$ const $\{$ std::cout $<<<$ label $<<"$: Base

$"$; $\}\}$; void f$($char const void g$($char const label$)$ const $\{$ std::cout $<<<$ label $<<<"$: Derived

$"$; $\}$ label$)$ const $\{$ std::cout $<<<$ label $<<"$: Derived$\backslash$r $\}$ struct Derived: Base int main$()$ Derived d; $3$aseb $*1=$ d Base& b $*2=$ d ;; d $.$f$(^$ prime prime d$.$f$^$ prime prime $)$j; d $.$g$($C$^$ prime prime d$.$g$^$ prime prime $)$i bl$.$f$("$bi$.$f$")$; b $1.$g$(^$ prime prime b$1.$z$^$ prime prime $)$;; b $2.$f$(^$ prime prime $12.$f$^$ prime prime $)$; b$2.$g$("$b$2.$g$")$; struct Base $\{.$