Sally is focused on cleaning her home, which she does for 4 hours per day. In particular, the fringe on her rugs must be straight on both sides in all five rooms. This takes considerable time, and she often repeats this 10 to 12 times per day. Her experience is most symptomatic of disorder.

Obsessive compulsive disorder  

Explanation:

Sally is focused on cleaning her home, which she does for 4 hours per day. In particular, the fringe on her rugs must be straight on both sides in all five rooms. This takes considerable time, and she often repeats this 10 to 12 times per day. Her experience is most symptomatic of obsessive compulsive disorder (OCD).  This is a mental disorder that results in repeated unwanted thoughts and the urge repeat an action such as cleaning over and over again. There are four categories of OCD;  checking, contamination, symmetry and ordering, ruminations and intrusive thoughts.

Contamination is the obsessive desire to always be clean.

the answer is:

c. economic output

sounds good to me mate!