Use This Earned Schedule Table to Determine the Schedule Performance

Use this earned schedule table to determine the schedule performance index (t) for this project at the end of Month 6. $\begin{array}{|l|l|l|l|l|l|l|l} & \text { Month } 1 & \text { Month } 2 & \text { Month } 3 & \text { Month 4 } & \text { Month } 5 & \text { Month } 6 & \text { Month } 7 \\\hline \mathbb{P V}(\$) & \$ 125 & \$ 275 & \$ 500 & \$ 875 & \$ 1,485 & \$ 2,325 & \$ 2,670 \\\hline \text { EV (\$) } & \$ 50 & \$ 120 & \$ 255 & \$ 420 & \$ 715 & \$ 865 & \$ 0 \\\hline\end{array}$

A) 0.71
B) 0.54
C) 0.38
D) 0.21