Choose the correct answer below. A. An event is unusual if it has a low probability of occurring. The choice of a cutoff should consider the context of the problem. B. An event is unusual if it has a probability equal to 0. The choice of a cutoff should consider the context of the problem. C. An event is unusual if it has a high probability of occurring. The choice of the cutoff should consider the context of the problem. D. An event is unusual if it has a probability equal to 1. The choice of a cutoff should consider the context of the