I need the solution within an hour please. Also, please show the detailed LSM diagram drawings in the answers.

Schedule the installation of $5$ identical equipment units by LSM$.$ The activities involved in each

machine's installation are as follows:

$($a$)$ Construct an LSM diagram for the installation of all $5$ machines that allows all crews to work

continuously and without interruption. $(5$ points$)$

$($b$)$ Identify controlling sequence $($i$.$e$.,$ the chain of controlling activities that determines project

duration$).(5$ points$)$

$($c$)$ After reviewing the schedule, your supervisor informs you that due to shortage of skilled

personnel the crew assigned to activity D must be halved $($i$.$e$.,$ the duration of D must become $2$

days per machine$).$ Construction a second LSM diagram for the installation of all $5$ machines based

on this constraint. What is the effect of this change to the project duration? Explain. $(10$ points$)$