Q. Which is the sorting algorithm in below given steps - 1. procedure X_SORT(n)
2. begin
3. for i := n - 1 downto 1 do
4. for j := 1 to i do
5. compare-exchange(aj, aj + 1);
6. end X_SORT

• (A) selection sort
• (B) bubble sort
• (C) parallel selcetion sort
• (D) parallel bubble sort