$22.$ A company using DBR has an order with a shipping buffer of $10$ days is due on $6/20.$ Today is $6/15.$ The company works $7$ days a week. The buffer consumption is now:

a$.20\%$

b$.0\%$

c$.100\%$

d$.50\%$

To the right is a traditional project network showing project dependencies and current task estimates using traditional approaches in days. There is only one of each resource $($A$,$ B$,$ C$,$ D$,$ E$,$ and F$).$ Using the CCPM approach to project management, please answer the next $3$ questions.

$23.$ The critical chain consists of:

a$.$ B $-$B $-$B $-$D $-$F

b$.$ A$-$C$-$B$-$D$-$F

c$.$ A$-$C$-$B $-$D $-$F

d$.$ B$-$A$-$B$-$B$-$C$-$F