Use the following information to compress one$-$time unit per move using the least$-$cost method. Reduce the schedule until you reach the crash point of the network. For each move identify what activity$($s$)$ was crashed and the adjusted total cost.

Note: The correct normal project duration, critical path, and total direct cost are provided.

To compress from time period $12$ to time $11$ crash the following activity$($s$)($You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.$)$

$\backslash (\backslash \{\backslash$mathrm$\{$A$\}\backslash )$

$\backslash (\backslash \{\backslash )$

$\backslash (?$ c $\backslash )$

$3$ D

$?$E

$3$ F

To compress from time period $16$ to time $15,$ crash the following activity$($s$)$: $($You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.$)$

$3$ A

$\backslash (\backslash \{\backslash )$

$?$

$3$ D

$\backslash (?\backslash$mathrm$\{$~F$\}\backslash )$

$\backslash (?\backslash$mathrm$\{$~F$\}\backslash )$

$\backslash (?\backslash$mathrm$\{$G$\}\backslash )$

$\backslash (\backslash \{\backslash$mathrm$\{$H$\}\backslash )$

$\backslash (?\backslash )$

What is the adjusted total cost at time period $15?$ To compress from time period $15$ to time $14,$ crash the following activity$($s$)$: $($You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.$)$

$\backslash (\backslash \{\backslash$mathrm$\{$A$\}\backslash )$

$\backslash (?\backslash )$

$1$ C

$\backslash (\backslash \{\backslash )$ D

$\backslash (\backslash \{\backslash$mathrm$\{$E$\}\backslash )$

$\backslash (?\backslash$mathrm$\{$~F$\}\backslash )$

$\backslash (?\backslash$mathrm$\{$G$\}\backslash )$

$\backslash (\backslash \{\backslash$mathrm$\{$H$\}\backslash )$

$\backslash (?1\backslash )$

What is the adjusted total cost at time period $14?$

What is the crash point of the network? $($Hint$.$ To obtain crash point, crash the project as much as is possible.$)$ What is the adjusted total cost at time period $\backslash (14?\backslash )$

What is the crash point of the network? $($Hint$.$ To obtain crash point, crash the project as much as is possible.$)$

What is the optimum cost$-$time schedule for the project?

weeks

What is this cost?