问题：
[单选题] The project manager must maintain an effective communication link with the customer’s satisfaction with the progress of the project. The project manager maintains this link through（ ）
A、Periodic project reports, periodic visits to the customer, and telephonic exchanges
B、Subordinates, project team members, and the project sponsor
C、One-time reports, weekly reports, and monthly reports
D、The telephone, facsimile, and data transmission
参考答案：
A、Periodic project reports, periodic visits to the customer, and telephonic exchanges
● 参考解析
