The correct answer is C) Floodwaters could be channeled to provide irrigation.
What is true about the development of farming in Sumer is "Floodwaters could be channeled to provide irrigation."
Historians consider Sumer as the oldest civilization on Earth. They settled in between the Tigris and Euphrates Rivers for the many benefits the rives offered them. People of Sumer started to learn agriculture techniques and with the floodwaters could channel the water to provide irrigation and grew crops. The land was fertile and people work hard to have good crops such as barley, wheat, fruits. They also started to domesticate some animals.
