(Choose 1 answer)
How is the array like after the first round?
Given an array A = {6, 7, 3, 4, 1, 2, 9} and Quick Sort is used to sort the aray A in increasing order with pivot value is 4.
A. 6, 7, 3, 4, 1, 2, 9
B. 2, 1, 3, 4, 7, 6, 9
C. 1, 2, 3, 4, 7, 6, 9
D. 1, 2, 3, 4, 6, 7, 9
18