Determine the output of the following code: public class Mystery \{ public static void main(String args[]) \{ int a, b, c, d; a=5;b=20;c=15;d=10; if (a>0b0b=b){ System.out.println("Choice 3 ); \}else \{ System.out.println("Choice 4"); ] 1st line of the output: 2nd line of the output