The Shell Sort

Multiple Choice

The Shell sort:

A) Finds the smallest value and exchanges it with the first value,then continues with the second value,third value,etc.
B) Is a system of comparisons and exchanges of adjacent elements to move the largest to the bottom of the selected group of values.
C) Is a system of comparisons and exchanges of elements that are non-adjacent.The gap is halved at each pass.
D) None of the above.