Answer:
Printer
Explanation:
First of all, we need to make a correction in the code to make type of the variables must same.
String s = (String) inventory.get(2);
String item = "Computer";
inventory.add(item); → Computer will be added to the index 0
inventory.add("Printer"); → Printer will be added to the the index 1
inventory.add("Monitor"); → Monitor will be added to the index 2
inventory.add(1, "Mouse"); → Mouse will be added to the list index 1, Printer will be moved at index 2. That is why item in the index 2 will be Printer
