Use the Information in the Table (All Times Are in Days)to

Use the information in the table (all times are in days) to determine the lowest total cost for a 20-day project if the base cost for each activity finished in normal time is $1,000. $$\begin{array} { | l | l | l | l | l | } \hline & \text { Normal } & \text { Minimum } & \text { Crash Cost } & \\ \text { Activity } & \text { Time } & \text { Time } & \text { (\$/day) } & \text { Predecessor } \\\hline \text { A } & 10 & 6 & \$ 70 & - \\\hline \text { B } & 6 & 3 & \$ 40 & - \\\hline \text { C } & 2 & 2 & - & \text { B } \\\hline \text { D } & 4 & 2 & \$ 60 & \text { C } \\\hline \text { E } & 6 & 4 & \$ 80 & \text { A } \\\hline \text { F } & 8 & 5 & \$ 90 & \text { D, E } \\\hline\end{array}$$

A) $6,280
B) $6,390
C) $6,530
D) $6,740