The Recurrence Interval of a Hazardous Event,also Known as the Return

Multiple Choice

The recurrence interval of a hazardous event,also known as the return period is

A) the average time separating two hazardous events of the same magnitude.
B) the probability of a hazardous event repeating itself in the next 50 years.
C) the maximum time separating two hazardous events.
D) the average time of recovery following a hazardous event.