Which of the Following Statements About Worker Motivation Is Most

Which of the following statements about worker motivation is most consistent with the findings of the Hawthorne studies?

A) Workers are more motivated if they feel they are part of a special group or project.
B) Worker motivation will fall significantly if lighting conditions,temperature,and other elements of the physical environment are not kept at their optimal levels.
C) Worker motivation is unimportant in determining the level of worker productivity,because productivity is primarily determined by external factors such as the speed of the machinery the workers operate.
D) The best way to motivate workers is to offer pay raises,bonuses,and other financial incentives to workers who meet or exceed clearly specified goals.