Textbook Question $4$E$/3-1$

Given the table below $($see picture$),$ assuming that there are only $8$ resources available at any time:

a$)$ Provide the network diagram

b$)$ Provide the original Gantt chart with all resources

c$)$ Provide the steps and process to update the schedule based on resource constraints

d$)$ Provide the final Gantt chart $($no need to recalculate slack$)$

e$)$ What is the final project duration? available at any time: