A Project Is Represented by the Activity Durations (In Days,estimated

Multiple Choice

A project is represented by the activity durations (in days,estimated at 90% likelihood of completion) and precedence requirements shown in the table.What is the length of the project buffer if this project is managed using critical chain methodology? Use the rule of thumb approach. $$\begin{array} { | l | l | l | l | l | l } \hline \text { Activity } & \text { Predecessor } & \text { Lengenth } & \text { Activity } & \text { Predecessor } & \text { Length } \\\hline \text { A } & - - & 18 & \mathrm { E} & \mathrm { C }, \mathrm { D} & 13 \\\hline B & - & 16 & \mathrm { F} & \mathrm { C }& 9 \\\hline \mathrm { C } & \mathrm { A } & 22 & \mathrm {G} & \mathrm { E } , \mathrm { F } & 15 \\\hline \mathrm { D } & \mathrm { B } & 14 & & & \\\hline\end{array}$$

A) 8.5 days
B) 17 days
C) 24.5 days
D) 34 days