What would be an appropriate model for customers arriving to a restaurant over a 24-hour period?

A) Poisson arrivals of individual customers.

B) Nonhomogeneous Poisson arrivals of individual customers.

C) Poisson arrivals of groups of customers, with the size of each party itself being random.

D) Nonhomogeneous Poisson arrivals of groups of customers, with the size of each party itself being random.