public class Demo public static void main(String[] arr) { Integer num1 100; Integer num2 = 100; Integer num3 = 500; Integer num4 = 500; if(num1--num2) { System.out.println("num1 = num2"); } else{ System.out.println("num1 = num2"); } if(num3 num4){ System.out.println("num3 num4"); } else{ System.out.println("num3 = num4");   Choices: a) num1 == num2 num3== num4 • b) num1 == num2 num3!= num4 c) num1 != num2 num3= num4 d) num1 != num2 num3 !=num4

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