The Recurrence of Drought as Conveyed Through the Return Period

Multiple Choice

The recurrence of drought as conveyed through the return period is expressed as

A) (number of years of record) / (rank for a specific precipitation event) .
B) (rank for a specific precipitation event) / (number of years of record) .
C) (magnitude of a specific rainfall event) / (duration of the rain event) .
D) (duration of the rain event) / (magnitude of a specific rainfall event) .