Given:

Armor.java

public class Armor extends Item {
    public void use() {/* Implementation not shown */}
}

Key.java

public class Key extends Item {
    public void use() {/* Implementation not shown */}
}

Potion.java

public class Potion extends Item {
    public void use() {/* Implementation not shown */}
}

Item.java

public class Item {  
    public Item() {/* Implementation not shown */}  
}

Main.java

import java.util.ArrayList;

public class Main
{
    public static void main(String[] args)
    {
        ArrayList<Item> items = new ArrayList<Item>();
        items.add(new Armor());
        items.add(new Key());
        items.add(new Potion());

        for (Item item : items) 
        { 
            item.use();
        }
    }
}

What will this program do?

1. Correct Answer
   Incorrect Answer
   a

   Runtime error during loop

2. Correct Answer
   Incorrect Answer
   b

   Compile Error

3. Correct Answer
   Incorrect Answer
   c

   Run to completion

4. Correct Answer
   Incorrect Answer
   d

   Infinite loop

5. Correct Answer
   Incorrect Answer
   e

   Runtime error adding items to list