Question 15:

If one uses straight two-way merge sort algorithm to sort the following elements in ascending order: 
20, 47, 15, 8, 9, 4, 40, 30, 12, 17 

...then the order of these elements after second pass of the algorithm is:

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