Question 21 (0.2 points) In a 2D array of ints called a, what is the right neighbor of element arlc? alr+1]Ic] alr-1]lc] atrlc+1] alr+1][c+1] Save Question 22 (0.2 points) It is possible to have an ArrayList of arrays. True False Save Question 23 (0.2 points) What is true about the following command? (Select all that apply) java MyClass aa bb cc output.txt bb will be args[1] in main. You have to create a scanner to read aa, bb, and cc. If you create a scanner using "Scanner scan - new Scanner(System.in)", it will read from input.txt. "input.txt" will be args[4] in main