The correct answer is B. MBO.
MBO stands for Management by Objectives. It is a process whereby superiors and subordinates jointly set goals and assess contributions of everyone to the common goals.
MBE stands for Management by Exception. It is a management style in which managers focus on only the most important issues and delegate the rest to their subordinates.
MBS stands for Management by Systems. It is a management style that focuses on the development and use of systems to improve efficiency and effectiveness.
MBP stands for Management by Participation. It is a management style that involves employees in decision-making and problem-solving.