Instead of Changing the Oil in His Car by Himself,Ashton

Instead of changing the oil in his car by himself,Ashton takes his car to a 10-minute oil change store.Although it's fast and inexpensive,what type of problem might Ashton encounter?

A) diminishing returns
B) adverse selection
C) principal-agent problem
D) symmetric information
E) an adverse selection problem that became a principal-agent problem