Answer: B. Storm Sewage
A Rainy Sanitary Sewer is constructed to carry Storm Sewage.
The sewage from the kitchen, bathroom, etc is carried to the treatment plant for treatment through a set of underground pipes known as a sanitary sewer. Sanitary sewers are an underground network of pipes that transport sewage from toilets, sinks, kitchens, and other plumbing fixtures to a wastewater treatment facility where it is filtered, treated, and then released.
A rainy sanitary sewer is constructed to carry Storm rainfall-runoff which is known as Storm Sewage.
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