A one way mirror in front of the mystery writers, with the mirror facing the audience would work best.
I believe the answer is: how well an employee is actually doing
Unlike in education environment, workplaces do not adopt GPA system do measure how well an employee perform, since there are a lot of factors that could determine employees'performance, depending on the position that they're in. Because of this, it is hard to develop a comparison method that could objectively measure employees' worth.
Answer:
C) Mecca
Explanation:
He was born in Mecca in the year 570
Fertile soil, favorable climate, extremely cheap labor, and rivers used for transportation
Farming and trading i think lol