Regarding the Rational Method, select the correct statement: The frequency of occurrence for the peak discharge is usually lower than the frequency of the rainfall producing that event. In the rational method, rainfall intensity is assumed to be uniform and constant throughout the duration of the storm. The rational method assumes that the available storage in the catchment (e.g. dams) is empty. One of the common applications of the rational method is in the design of detention basins and wetlands. None of the options.