Q. Which among the following countries is the largest producer of cotton?
Answer: China
Notes: Cotton is one of the most important cash crops supplying raw material to an extensive textile industry. It is a widely grown crop in areas of warm subtropical climate, typically on the equatorial side of the mid-latitudes. 
Among the cotton producing countries the first rank goes to China. The major areas of production in China lie in the floodplains of the major rivers in the northeastern part of the country.