Consider the following code block: switch grade) Case 5 case 4 b=2 break; case 3 a = 5; break default a-2 break, Which of the following if statements is equivalent to this switch statement? Yanitiniz: if grade - 416 a-1: b = 2: } else ift grade -- 3){ a = 5:) else { a = 2:) if (grade == 48&grade -- 5 a = 1:0 = 2: } else if (grade -- 3) (a - 5:) else {a = 2: if (grade -- 4 11 grade -5% a 1:2 else if (grade3) - 5:) else {a - 2:1 itt grade 1-512 grade ** a = 2 else if grade 3) (2=51 None of the above