Given the array [13, 1, 3, 2, 8, 21, 5, 1] suppose we choose the pivot to be 1 the second element in the array. Which of the following would be valid partitions? A. 1 [1, 2, 3, 5, 8, 13, 21] B. 1 [13, 1, 3, 2, 8, 21, 5] C. 1 [13, 3, 2, 8, 21, 5, 1] D. [1] 1 [13, 3, 2, 8, 21, 5] E. [13] 1 [3, 2, 8, 21, 5, 1] F. [13, 1, 3, 2, 8, 21, 5]