Assume the network and data that follow:

ACTIVITY

NORMAL

TIME $($WEEKS$)$

$2$

B

C

E

G

$8$

$6$

$7$

$4$

NORMAL CRASH TIME CRASH

COST $($WEEKS$)$

COST

$$50$

$1$

$$70$

$80$

$160$

$70$

$110$

$60$

$80$

$100$

$130$

$40$

$100$

$3$

$4$

$100$

$150$

b$.$ Indicate the critical path when normal activity times are used.

IMMEDIATE

PREDECESSORS

B

C$,$ E$,$ F

$$A$-$B$-$E$-$G

A$-$C$-$F$.$G

C$.$ A$-$D$-$E$-$G

$$ A$-$D$-$F$.$G