I need to find the most cost-efficient solution for the problem. The network diagram for both the Trim question and the Compare question is provided for your reference only. Please explain step by step. Thank you!

Trim Question

Trim diagram

Compare Question

Compare Diagram

\begin{tabular}{|c|c|c|c|c|c|c|c|} \hline & Successo & Duration & Minimum & Cost & People & People Assigned & Trim Cos \\ \hline Activity & r Activities & (days) & Duration & (\$000) & Assigned & if Crash & (\$000) \\ \hline A & B,E & 4 & 3 & 2 & 4 & 5 & 1 \\ \hline B & G & 2 & 2 & 2 & 3 & 3 & 0.5 \\ \hline C & D & 5 & 4 & 3 & 4 & 5 & 0.5 \\ \hline D & J & 5 & 3 & 3 & 5 & 7 & 1 \\ \hline E & F & 4 & 3 & 2 & 5 & 6 & 1 \\ \hline F & H & 3 & 3 & 3 & 4 & 4 & 0.75 \\ \hline G & R & 5 & 4 & 4 & 4 & 4 & 2 \\ \hline H & M & 4 & 4 & 4 & 5 & 5 & 1 \\ \hline J & K & 4 & 4 & 4 & 4 & 4 & 1 \\ \hline K & L & 4 & 3 & 3 & 3 & 4 & 0.75 \\ \hline L & N & 4 & 3 & 4 & 3 & 3 & 1 \\ \hline M & P & 3 & 3 & 2 & 2 & 2 & 2 \\ \hline N & NONE & 4 & 3 & 2 & 4 & 5 & 2 \\ \hline P & S & 3 & 2 & 3 & 2 & 3 & 1 \\ \hline R & N & 5 & 4 & 5 & 4 & 5 & 0.75 \\ \hline S & N & 3 & 2 & 3 & 3 & 3 & 2 \\ \hline \end{tabular} Identify the critical path(s). Trim 3 days from the project duration. Which activities should be shortened so that the cost is the lowest? What is the additional cost? \begin{tabular}{|c|c|c|c|c|c|c|c|} \hline & Successo & Duration & Minimum & Cost & People & People Assigned & Trim Cos \\ \hline Activity & r Activities & (days) & Duration & (\$000) & Assigned & if Crash & (\$000) \\ \hline A & B,E & 4 & 3 & 2 & 4 & 5 & 1 \\ \hline B & G & 2 & 2 & 2 & 3 & 3 & 0.5 \\ \hline C & D & 5 & 4 & 3 & 4 & 5 & 0.5 \\ \hline D & J & 5 & 3 & 3 & 5 & 7 & 1 \\ \hline E & F & 4 & 3 & 2 & 5 & 6 & 1 \\ \hline F & H & 3 & 3 & 3 & 4 & 4 & 0.75 \\ \hline G & R & 5 & 4 & 4 & 4 & 4 & 2 \\ \hline H & M & 4 & 4 & 4 & 5 & 5 & 1 \\ \hline J & K & 4 & 4 & 4 & 4 & 4 & 1 \\ \hline K & L & 4 & 3 & 3 & 3 & 4 & 0.75 \\ \hline L & N & 4 & 3 & 4 & 3 & 3 & 1 \\ \hline M & P & 3 & 3 & 2 & 2 & 2 & 2 \\ \hline N & NONE & 4 & 3 & 2 & 4 & 5 & 2 \\ \hline P & S & 3 & 2 & 3 & 2 & 3 & 1 \\ \hline R & N & 5 & 4 & 5 & 4 & 5 & 0.75 \\ \hline S & N & 3 & 2 & 3 & 3 & 3 & 2 \\ \hline \end{tabular} Identify the critical path(s). Trim 3 days from the project duration. Which activities should be shortened so that the cost is the lowest? What is the additional cost