Answer:
The correct answer is letter "D": Transactional leaders often rely too heavily on discipline or threats to bring performance up to standards.
Step-by-step explanation:
Transactional leaders are those that keep their teams motivated through a reward-punishment method of working. Subordinates are constantly supervised to determine if they fulfill the expectations they were hired for. This leadership style is mainly used in military agencies or even sports such as football.
Relying on threats to keep the performance up of the team is one of the disadvantages of being a transactional leader.