Consider the follow incomplete code.

Indicate which of the following code $($i$)$ will correctly display the list of students in the class.

#include

#include

int main$()$

$\{$ std::stack stackClass;

stackClass.push$("$John$")$;

stackClass.push$("$Peter$")$;

stackClass.push$("$Mary$")$;

$//...($i$)...$ missing code

$\}$

a$.$ while $(!$stackClass.empty$())$

$\{$

std::cout $<<$ stackClass.top$()$;

stackClass.pop$()$;

$\}$

b$.$ while $(!$stackClass.empty$())$

$\{$

stackClass.pop$()$;

std::cout $<<$ stackClass.top$()$;

$\}$

c$.$ while $(!$stackClass.isEmptyStack$())$

$\{$

stackClass.pop$()$;

std::cout $<<$ stackClass.top$()$;

$\}$

d$.$ for $($int i$=1$; stackClass.top$()-1$;i$++)$

$\{$

cout $<<$ stackClass.top$()$;

$\}$

e$.$ None of the available options.