Which of the Following Scenarios Would Result in an Increase

Which of the following scenarios would result in an increase in members' confidence in an organizational leader?

A) Mark,a manager,reports to his boss every single day because of the new mandatory reporting system that he initiated in the organization.
B) Colin provides his employees with an incentive if they agree to be transferred to another department.
C) Alex has told his employees that if they adopt the new production system it would double profits and would help the organization grow rapidly.
D) Glen,a manager,promoted his employee for attempting to adopt the new sales strategy and succeeding.