Which of the following statements is definitely true?

Options

A. In Step-III, there are four elements between '40' and '50'.
B. In Step-IV, there are five elements between '30' and '40'
C. In Step-V, there are three elements between '20'and '80'.
D. In Step-IV, there are three elements between '20' and '40'

Answer

D

Explanation

Input: 40 of must attend 30 60 80 regular school 70 students 20 class 50
Step I: students 40 of must attend 30 60 regular school 70 20 class 50 80
Step II: school students 40 of must attend 30 60 regular 20 class 50 80 70
Step III: regular school students 40 of must attend 30 20 class 50 80 70 60
Step IV: of Regular school students 40 must attend 30 20 class 80 70 60 50
Step V: must of regular school students attend 30 20 class 80 70 60 50 40
Step VI: class must of regular school students attend 20 80 70 60 50 40 30
Step VII: attend class must of regular school students 80 70 60 50 40 30 20