According to the passage, what is the main task of "executive coaching"？A．Teaching the exe

According to the passage, what is the main task of "executive coaching"？

A．Teaching the executive skills they don"t have before.

B．Assisting executives to run their businesses.

C．Making a series of rules for executives to manage their subordinates.

D．Improving the team work of staff in the executives" organizations.

请帮忙给出正确答案和分析，谢谢！