From the following information, compute the early, late, and slack times for each activity. Identify the critical activities.

Lag 5 Lag 4 \begin{tabular}{|l|l|l|} \hline The critical activities are & & \\ \hline What is the EF for Activity C? & & \\ \hline What is the LF for Activity E? & & \\ \hline What is the slack for the start of Activity C? & & \\ \hline What is the slack for the start of Activity E? & & \\ \hline What is the slack for the end of Activity E? & & time periods. \\ \hline What is the length of the project? & & \\ \hline \end{tabular}