A project consists of 10 activities are listed in the following table. For each activity, there are two activity time: Normal Activity Time with Normal Budget and Crashed Activity Time with Crashed Budget. Crashed Activity Time is defined as the reduced activity time with higher budget. The project manager also identifies activities B, D, F, H, and J as critical activities. The project manager wishos to reduce the Total Project Completion Time (calculated based on the normal activity time) by selecting one of those critical activities to crash(reduce) the activity time. Based on the selection procedure discussed in our lecture. Which critical activity should be selected first? (time unit in winabel \begin{tabular}{|l|l|l|l|l|l|} \hline 1 & 5 & 5450,000 & 3 & $520,000 \\ \hline 1 & 6 & $500,000 & 4 & $550,000 & \\ \hline \end{tabular} Activity B Activity o Activity F Activity H Activity J