In The Goal, Jonah claims: $$It is impossible to perfectly balance capacity to demand $$

a$.(3$ pts$)$ Why does he think so$?$

b$.(3)$ He therefore advocates $$Balance flow, not capacity.$$ What exactly does he mean by that?

c$.(3)$ Does the Toyota Production System agree?

d$.(4)$ Do you agree with both of Jonah$$s statements? Why or why not?