问题：
[单选题] The earned value technique is a commonly used method of performance measurement. It integrates project scope, cost, and schedule measures to help the project management team assess project performance
A、he project is ahead of its planned schedule
B、less work was completed than was planned t
C、the cost overrun for work completed
D、the cost underrun of performance to date
参考答案：
B、less work was completed than was planned t
● 参考解析
