In which of the following countries is cotton growing under irrigation the mainstay of the agricultural economy?
Zimbabwe
Sudan
Mali
Ghana
Correct answer is B
Sudan is known for cotton production. Irrigation is practiced more at sub-Saharan countries. The Nile and its tributaries are the source of water for 93% of irrigated agriculture in the Sudan peninsula.
Sudan is the only North East African country in the option, all other options are wrong