Java Puzzler: Crossing Streams

package com.genuinevm.puzzlers;

import java.util.Arrays;
import java.util.List;
import java.util.stream.IntStream;

/**
 * This puzzler is called Crossing Streams, try and find out just by looking
 * what the code will print.
 *
 * @author Brian Wiegand (GenuineSounds)
 */
public class CrossingStreams {

    public static List<String> STRINGS = Arrays.asList("Vadr", "Luke");

    public static void main(String[] args) {
        IntStream ints = IntStream.range(1, 4);
        STRINGS.stream().forEach(string -> {
            ints.forEach(integer -> {
                System.out.print(string + integer + ", ");
            });
            System.out.println();
        });
    }
}
/**
 * Multiple Choice
 *
 * What will print:
 *   A) Vadr1, Vadr2, Vadr3,
 *      Luke1, Luke2, Luke3,
 *   B) Vadr1, Vadr2, Vadr3, Vadr4,
 *      Luke1, Luke2, Luke3, Luke4,
 *   C) Vadr1, Vadr2, Vadr3,
 *   D) Vadr1, Vadr2, Vadr3, Vadr4,
 *   E) Nothing
 *   F) None of the Above
 *
 * Will it throw an exception?
 *   A) Yes
 *   B) No
 *
 * Explain your answer.
 */