Which element is at its final position after the partitioning step in Quicksort?
The details depend on the partitioning method used, but usually the pivot ends up in its final position.

That follows from the second and third statement, by the way: all elements smaller than the pivot are to the left of it, and the larger to the right. The pivot is in between, and that is clearly its final position in the sorted array.

That the second and third statement hold is the central property of the partitioning method used.