Bread processing flow diagram is shown below. The total production consists of eight process steps, which can broadly be grouped into three main divisions: a$)$ Mix, Proof, and Bake; b$)$ Mix filling and Testing; and c$)$ Fill & Fold, Bake, and Pack, where divisions a and b can run parallel. Value A $=3$ and B $=8$ in the below diagram. a$)$Mention all the process steps that are starving. Explain why they are starving.

b$)$Mention all the process steps that are blocking. Explain why they are blocking.

c$)$Find manufacturing lead time for the process.

d$)$What is the bottleneck speed?