Which of following best describes customer benefits in delivering network readiness assessment services in plan phase？（）

• A、improve its ability to achieve business goals by identifying and aligning advanced technologies with business requirements
• B、improve its return on investment and speed migration by improve its ability to identify，understand， and plan for necessary changes in infrastructure or resource
• C、ensure that key employees understand all of the implementation steps
• D、reduce the amount of risk it is exposed to by using proven project management methodologies and risk mitigation strategies