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