Prepare a schedule based on resources. There are only 3 resources available for each period.

Please explain this step by step

Activity	Predecessor	Duration	Resources needed
1	-	2	2
2	1	6	2
3	1	4	2
4	1	2	1
5	3	2	1
6	3	4	1
7	2,4,5,6	2	1

1. What is the critical path before resource assignment?

2. What will be the project duration after resources are assigned?

3. What will be the final slack for activity 2?

4. What will be the final slack for activity 6?

5. Which activity starts first between 2, 3, and 4? Why?