Which of the Following Is a Specific Assumption of Theory

Which of the following is a specific assumption of Theory Z managers?

A) The expenditure of physical and mental effort at work is as natural to people as resting or playing.
B) The intellectual potential of the average human being is only partially tapped under conditions of modern industrial life.
C) Employees who learn different aspects of the business will be in a better position to contribute to the broader goals of the organization.
D) Commitment to objectives is determined by the rewards that are associated with their achievement.