Arrange the following steps in the process of delegation of authority in the correct order.
(A) Assigning tasks to the position
(B) Determining the results expected from a position
(C) Delegating authority for accomplishing the tasks
(D) Holding the person in that position responsible for the accomplishment of tasks
Match List-I with List-II

What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)