A 1 -h rainfall of $10 \mathrm{~cm}$ magnitude at a station has a return period of 50 years. The probability that a $1-h$ rainfall of magnitude $10 \mathrm{~cm}$ or more will occur in each oftwo successive years is:

(A) 0.04

(B) 0.2

(C) 0.02

(D) 0.0004

A 1 -h rainfall of $10 \mathrm{~cm}$ magnitude at a station has a return period of 50 years. The probability that a $1-h$ rainfall of magnitude $10 \mathrm{~cm}$ or more will occur in each oftwo successive years is:

(A) 0.04

(B) 0.2

(C) 0.02

(D) 0.0004

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