This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Sewage is defined as: 
Select and explain. 
A. Discarded waste arising from man's activities, B. Waste matter arising from preparation, cooking and consumption of food, C. Waste water from community containing solid and liquid excreta, D. Waste water which does not contain human excreta
C: Waste water from community containing solid and liquid excreta
Answer: C: Waste water from community containing solid and liquid excreta 
Explanation: Waste water from community containing solid and liquid excreta Sewage is defined as waste water from community containing solid and liquid excreta. "Sullage" is waste water from the community which does not contain human excreta e.g., waste water from kitchens and bathrooms.