Using Onset of Action as the Basis,select the Group of Laxatives

Using onset of action as the basis,select the group of laxatives listed in the order of increasing onset-of-action times.

A) Bowel evacuants, emollients, stool softeners
B) Emollients, bowel evacuants, swelling agents
C) Osmotic laxatives, emollients, bowel evacuants
D) Stimulants, stool softeners, emollients