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	6	$2,300	$2,600	A
E	6	3	$900	$1,200	B
F	3	2	$3,000	$4,200	C
G	4	2	$1,400	$2,000	E, F

If the project is to be shortened by 1-week, which activity will be reduced and how much will the cost be increased?

		A, $100
		E, $100
		A. $100; E.$100
		F, $1200

Please highlight the answer