What Was Mayo's View of Human Nature? Please Select All

What was Mayo's view of Human nature? Please select all that apply.

A) That human beings are irrational and are governed by sentiment.
B) That human beings are economic animals who are only interested in cost-benefit analysis and work for their own rational ends.
C) That human beings are rational beings and always act in sensible ways based upon evidence and are governed by their rational best interests.
D) That human beings are social animals who have social and psychological needs.