Choose the best answer that is true about Bubble Sort when sorting in ascending order. It takes N log2 N comparisons and works by exchanging the first and lastiems. OA B. It takes N2 comparisons and works by exchanging the top item with the smallest item oc It takes N2 comparisons and works by exchanging adjacent items if the first one is larger It takes N log2 N comparisons and works by exchanging the top item with the smallest item OD. It takes N log2 N comparisons and works by exchanging adjacent items if the first one is larger