Given the following product tree, explode, offset, and determine the gross and net requirements. All lead times are one week, and the quantities required are shown in parentheses. The customer calls for 500 As to be available in week 5. The BOM tree structure is: it needs 2 Bs and 2 Cs to make an A; 2 Ds and 1 E to make a B, and 1 D and 2 Fs to make a C. Then, the Planned Order Release of part E in period 2 is:

				A
	B		2			C		2
D			E		D			F
2			1		1			2

Part	Week	1	2	3	4	5
A	Gross Requirements Projected Available Net Requirements Planned Order Receipt Planned Order Release
B	Gross Requirements Projected Available Net Requirements Planned Order Receipt Planned Order Release
C	Gross Requirements Projected Available Net Requirements Planned Order Receipt Planned Order Release
D	Gross Requirements Projected Available Net Requirements Planned Order Receipt Planned Order Release
E	Gross Requirements Projected Available Net Requirements Planned Order Receipt Planned Order Release
F	Gross Requirements Projected Available Net Requirements Planned Order Receipt Planned Order Release

Select one:

a. 3000

b. 1000

c. 2000

d. None of them

e. 500