Elton Mayo and His Team Conducted Research on Workplace Conditions

Elton Mayo and his team conducted research on workplace conditions and productivity at the Hawthorne Works Plant of the Western Electric Company from 1924 to 1932. Throughout the study, as Mayo and his team introduced various physical conditions, the workers' productivity increased. When the researchers asked the workers about their behavior, they expressed

A) confusion because they thought their productivity had decreased.
B) satisfaction because their supervisor had asked for their help and cooperation in the study.
C) frustration because it was difficult to remain productive under the various physical conditions.
D) appreciation because they were being paid for their participation.
E) concern that they were planning to introduce worse physical conditions.