The following question refers to the following three classes:

Animal.java ScoobyDoo.java Shaggy.java WhereAreYou.java

public class Animal

$\{$

public String getColor$()$

$\{$

return "yellow";

$\}$

public String getSize$()$

$\{$

return "microscopic";

$\}$

$\}$

public class ScoobyDoo extends Animal

$\{$

public String getColor$()$

$\{$

return "purple";

$\}$

public String getSize$()$

$\{$

return $"50$ lbs$"$;

$\}$

$\}$

public class Shaggy extends Animal

$\{$

public String getColor$()$

$\{$

return "grey";

$\}$

public String getSize$()$

$\{$

return $"125$ lbs$"$;

$\}$

$\}$

public class WhereAreYou

$\{$

public static void main$($String$[]$ args$)$

$\{$

ScoobyDoo a$=$new ScoobyDoo$()$;

Shaggy b$=$new Shaggy$()$;

Animal c$=$new Animal$()$;

Animal d$=$c;

System.out.println$($a$.$getColor$())$;

System.out.println$($b$.$getColor$())$;

System.out.println$($c$.$getColor$())$;

System.out.println$($d$.$getColor$())$;

$\}$

$\}$

When running WhereAreYou, the output is four lines. In each of the four lines blanks below, provide the output.