If one uses straight two-way merge sort algorithm to sort the following elements in-~ ascending order : 20, 47, 25, 8, 9, 4, 40, 30, 12, 17, then the order of these elements after second passofthe algorithms is

A

8, 9, 15, 20, 47, 4, 12, 7, 30, 30

B

8, 15, 20, 47, 4, 9, 30, 40, 12, 17

C

15, 20, 47, 4, 8, 9, 12, 30, 40, 17

D

4, 8, 9, 15, 20, 47, 12, 17, 30, 40