Precise capacity design or the rate of service utilization $(),$ is application specific.

A$.$ Both it could be close to $100\%$ for a sports arena and it could be as low as $0\mathrm{.}5$ for hospital emergency room.

B$.$ It could be as low as $0\mathrm{.}5$ for hospital emergency room.

C$.$ All of the above choices are correct.

D$.$ It could be close to $100\%$ for a sports arena.

E$.$ As the degree of uncertainty in demand increases, higher $$ may be appropriate.