One effect of the long dry season in the African savanna is that most farmers grow drought-resistant grains such as wheat and millet. How else do people in the Sahel meet their nutritional needs?
A 
People grow tropical fruits to provide variety.
B 
People raise livestock that graze on grassland.
C 
People fish in the region's many lakes and rivers.
D 
People import most of their food from other continents.