Pick up the correct statement from the following:
(A) The intensity of rain is the rate at which it falls
(B) The duration of rain is the time for which it falls with a given intensity
(C) The frequency of rain is the number of times, if falls
(D) All the above
(A) The intensity of rain is the rate at which it falls
(B) The duration of rain is the time for which it falls with a given intensity
(C) The frequency of rain is the number of times, if falls
(D) All the above