What is the result of the following code? (Choose all that a…

What is the result of the following code? (Choose all that apply) 13: String a = ” “; 14: a += 2; 15: a +=  ‘c’; 16: a +=  false; 17: if (a == “2cfalse”) System.out.println(“==”); 18: if (a.equals(“2cfalse”)) System.out.println(“eaqals”);