Which of the following is not in place sorting algorithm by default?ans.insertion sortmerge sortquick sortheap sort Previous Marked for Review Next

The sorting algorithm that is not in-place by default among the options provided is Merge Sort.

Here's why:

1. Insertion Sort: This is an in-place sorting algorithm because it only requires a constant amount O(1) of additional space.

2. Merge Sort: This is not an in-place sorting algorithm. It requires additional space proportional to the array being sorted, so its space complexity is O(n).

3. Quick Sort: This is an in-place sorting algorithm. It sorts the array by swapping elements within the array and does not require additional space.

4. Heap Sort: This is also an in-place sorting algorithm. It sorts the array by turning it into a binary heap structure, which is done in the array itself.

So, the answer is Merge Sort.