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Which of the following statements is incorrect?

A)  In Chennai, the water-supply department has taken several initiatives for rain water harvesting to increase the level of ground water there.

B)  The water supply department in Mumbai raises enough money enough money through water charges to cover its expenses of water supply.

C)  In Hyderabad water-supply department has increased coverage and improved performance in revenue collection.

D)  All of these

E)  None of these