For the following project:

Activity

Normal Time

$($Weeks$)$

Crash Time

$($Weeks$)$

Normal Cost

Crash Cost

Immediate

Predecessor

A

$4$

$3$

$2,000$

$2,100$

$-$

B

$2$

$1$

$2,200$

$2,800$

$-$

C

$3$

$3$

$500$

$500$

$-$

D

$8$

$7$

$2,300$

$2,500$

A

E

$6$

$3$

$900$

$1,200$

B

F

$3$

$2$

$3,000$

$4,200$

C

G

$4$

$2$

$1,400$

$2,000$

D$,$ E

How much will the cost increase if it is crashed maximum?

$1000$

$1350$

$1200$

$900$

$1100$