Situation 1: WBS Element BCWS (PV) BCWP (EV) ACWP (AC) P $1,000 $1,100 $1,150 Q $2,000 $1,800 $2,100 R $1,000 $1,200 $1,050 S $2,000 $1,900 $1,800 Using Situation 1 above, the cost performance index (CPI) for WBS element R is: Select one: 0.875 1.14 0.952 0.833 1.20