Describe the output of the following program and explain why it is produced struct base void foo(void) { cout foo(): return 0; produced b Describe the output of the following program sad plain why it public class Mainf public static void main(String args) { Base - new Derived : D.fooo class Base public void foof System.outprintln("Base"); class Derived extends Basef le void for System.out.println("Derived): Problem 4. a. In the space provided below, briefly describe the reference-counting garbage collection algorithm b. In the space provided below, briefly describe the mark-sweep garbage collection algorithm