You recently took over a large project from another project manager who had to leave for a personal emergency．You want to understand what kind of information should he provided to different stakeholders，and what methods should he used to provide this information．You will find this information in the______．

A．communications management plan

B．performance reports

C．project records

D．communication plan

电气制动只能做（）之用，连挂车辆时禁止使用。