听力原文： Meanwhile in Addis Ababa Monday UN Secretary General Kofi Annan has called for an increase in agricultural production to feed the hungry in AfricA.Mr. Annan said Africa must improve irrigation and transportation networks. He urged African nations to use genetically modified crops to boost agricultural output. In a sideline seminar to the African Union summit, several African presidents shared what they are doing to try to stop hunger in their countries. What's the most serious problem African nations are facing? A.Hunger. B.Malnutrition. C.Lack of drinking water. D.Poor transportation.
A.What's B.Hunger. B.Malnutrition. C.Lack C. D.Poor D.