What is the name of the freshwater canal system, built in the 19th century alongside the Suez Canal, that supplies drinking water to the entire canal zone cities?

• A Ibrahimiya Canal
• B Mahmudiya Canal
• C Ismailia Canal ✓
• D Tawfiqi Canal

The Sweet Water Canal (Ismailia Canal), dug between 1861 and 1863, was built alongside the nascent Suez Canal primarily to supply the thousands of labourers working on the project — today it is the sole source of Nile freshwater for Port Said, Ismailia, and Suez.