a$.$ Choose the correct project network diagram below.

A$.$

B$.$

c$.$

$.$

b$.$ Identify all the paths through the network and their lengths. Fill in the table below $($enter your responses rounded to one decimal place$).$

c$.$ The critical activities are

so they make up the critical path.

The entire project will take

days to complete. $($Enter your response rounded to one decimal place.$)$

d$.$ Management would like to complete the project in less than $21$ days. Management has determined that activity $E$ can be crashed $4\mathrm{.}5$ days, for a

total cost of $$15,000.$ No other activities can be crashed.

After crashing,

is the critical path. The entire project will take

days. $($Enter your response rounded to one decimal place.$)$