Consider the following information about a small project:

Task	Duration (days)	Immediate Predecessors	Shortest Time Possible	Acceleration Cost per day
A	5	None	4	$6,500
B	10	A	9	$5,000
C	8	A	7	$7,000
D	6	B	3	$6,000
E	7	C	6	$6,000
F	3	C	2	$7,000
G	4	D,E,F

A) Find the cost-effective way to reduce the completion time by 3 days. For example, if your answer is to accelerate task A by 1 day, put down A by 1 in the blank. When you need to accelerate multiple tasks at the same time, please identify them in a single step. For example, if your answer is to accelerate B and C both by 1 day, put down BC by 1 in the blank. Step 1: Accelerate task(s) ____ day(s) Step 2: Accelerate task(s) ____ day(s) Step 3: Accelerate task(s) ____ day(s)