Mr. mahara, the plant manager at a large manufacturing facility, is interested in watching his workers in order to identify the factors that affect employees' productivity. however, he knows that due to the effect, workers might behave differently if they are aware they are being observed.

However, he knows that due to the "Hawthorne" effect, workers might behave differently if they are aware they are being observed.

The Hawthorne effect is a term alluding to the inclination of a few people to work harder and perform better when they are members in an investigation. The term is regularly used to recommend that people may change their conduct because of the consideration they are accepting from specialists instead of in light of any control of autonomous factors.  

The Hawthorne effect has been broadly talked about in brain science reading material, especially those gave to mechanical and hierarchical brain science. Notwithstanding, a portion of the later discoveries propose that huge numbers of the first cases made about the impact might be exaggerated.

there was no passage listed but using the process of elimination i'd say it was d. the high economy would do the opposite. i don't see how low prices would affect it. high unemployment is possible but i feel d is the better answer.