What will be the output of the following Java program? public class BoxDemo public static void addBox(U u, java.util.List > boxes) Box box = new Box<>(); box.set(u); boxes.add(box); public static void outputBoxes(java.util.List > boxes) int counter = 0; for (Box box: boxes) U boxContents = box.get(); System.out.println("Box #" + counter + " contains [" + boxContents.toString() + "]"); counter++; public static void main(String[] args) java.util.ArrayList > listOfIntegerBoxes = new java.util.ArrayList<>(); BoxDemo. addBox(Integer.valueOf(10), listOfIntegerBoxes); BoxDemo.outputBoxes(listOfIntegerBoxes);

Answer: Option D