Along with a rapid change in dew point temperature, which of the following defines a dryline?

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A dryline is a boundary that separates air with different moisture content. It is characterized by a sharp horizontal change in atmospheric moisture, often accompanied by a change in temperature and wind direction. A rapid change in dew point temperature alone is not sufficient to define a dryline. Stalled cold or warm fronts do not necessarily involve a significant change in atmospheric moisture across the boundary. Only option A describes a feature that can be associated with a dryline.

Along with a Rapid Change in Dew Point Temperature, Which