$)$ A process has eight different steps and four types of flow units, how many rows will

there be in the demand matrix? How many columns? $(5$ points$)$

b$)$ After constructing the workload matrix for a process and comparing the total workloads

demanded of each step to the capacity available at that step, you get the following

implied utilizations:

Step $1=75\%,$ Step $2=115\%,$ Step $3=109\%,$ Step $4=100\%.$

Which step in this process is the bottleneck? $(5$ points$)$