At which of the following sites, largest variety of food grains in the Chalcolithic age has been found?

Q. At which of the following sites, largest variety of food grains in the Chalcolithic age has been found?
Answer: Navdatoli
Notes: At Navdatoli, located near Maheshwar town in Madhya Pradesh in Narmada valley, several varieties of food grains like rice, jowar, ragi etc. have been found.