B$.$ With a static variable it counts how many objects have been created and then decrements

when an object is destroyed.

void Rect::fGlide$()\{$

if $($this$->$xInit $==0$&& this$->$yInit $==0$

int randomNum $=$ this$->$randomNumber$()$;

if $($randomNum $==1)$

this$->$moveDown$()$;

else if $($randomNum $==2)$

this$->$moveRight$()$;

else if $($randomNum $==3)$

this$->$moveDiagonalNegRight$()$;

$\}\frac{\frac{?}{?}}{?}$ randomly selects the direction of the object when it's at the coordinate $(0,0)$

if $($this$->$xInit $=600$&& yInit $=500$

int randomNum $=$ this$->$randomNumber$()$;

if $($randomNum $==1)$

this$->$moveUp$()$;

else if $($randomNum $==2)$ else if $($randomNum $==3)\}//$randomly selects the direction of the object when it's at the coordinate $(600,500)$

if $($this$->$xInit $==600$ && yInit $==0)\{$ if $($randomNum $==1)$ else if $($randomNum $==2)$ else if $($randomNum $==3)\}//$randomly selects the direction of the object when it's at the coordinate $(600,0)$

if $($this$->$xInit $==0$ && yInit $==500)\{$if $($randomNum $==1)$ else if $($randomNum $==2)$ else if $($randomNum $==3)\}//$randomly selects the direction of the object when it's at the coordinate $(600,0)$C$.$ In main, Rect class objects were changed to heap pointers with the new and delete

commands. Two pointers are created to have two objects to be painted on the console..$//$Hace que la pantalla mida $600$x$500$Rect $*$rectangle $1=$ new Rect;Rect::printObjectAmount$()$; $($rectangle$1)->$fGlide$()$;$\}$delete rectangle$2$;system$("$pause$")$; return $0$ ;

$\}//$end main

D$.$ Flowchart $/$ draw a flow chart.