Midway through a US$50,000 project manager conducts an earned value analysis (EVA). There results show that the planned value (PV) is US$20,000, and the actual cost (AC) is US$15,000.Based on these results, what is the project’s status? 在一个价值50,000美元的项目中途,项目经理进行挣值分析(EVA)。结果显示计划价值(PV)为25,000美元,挣值(EV)为20,000美元,实际成本(AC)为15,000美元。根据这些结果,项目的状态是什么? ◑A.Behind schedule and over budget落后于进度,并超出预算 ◑B.Behind schedule and under budget落后于进度,但低于预算 ◑C.Ahead of schedule and under budget超前于进度,并低于预算 ◑D.Ahead of schedule and over budget超前于进度,但超出预算