make the project start date 3 Jan 2022

Level the following multi-project operation.

Work package	Description	Duration (weeks)	Predecessors	Resources
A1	Analysis & design Proj 1	4	-	SAD
B1	Production Proj 1	7	A1	PROD
C1	Testing Proj 1	3	B1	TEST
D1	Install Proj 1	2	C1	INSTALL
A2	Analysis & design Proj 2	4	A1	SAD
B2	Production Proj 2	5	A2	PROD
C2	Testing Proj 2	3	B2	TEST
D2	Install Proj 2	1	C2	INSTALL
A3	Analysis & design Proj 3	8	A2	SAD
B3	Production Proj 3	12	A3	PROD
C3	Testing Proj 3	5	B3	TEST
D3	Install Proj 3	3	C3	INSTALL
A4	Analysis & design Proj 4	8	A3	SAD
B4	Production Proj 4	10	A4	PROD
C4	Testing Proj 4	4	B4	TEST
D4	Install Proj 4	2	C4	INSTALL

1. show the schedual before the leveling

2. show the schedual of the project after leveling

3.If all work was to be done by the deadline of the end of week 40, what resources are causing delay?