[单项选择]

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WHO, working closely with its Member States, other United Nations agencies and non-governmental organizations, is focusing on major crippling forms of malnutrition: protein-energy malnutrition, iodine deficiency disorders, vitamin A deficiency, and iron deficiency anaemia.
In some regions, such as sub-Saharan Africa and south Asia, stagnation of nutritional improvement combined with a rapid rise in population has resulted in an actual increase in the total number of malnourished children. Currently, over two-thirds of the world’s malnourished children live in Asia, followed by Africa and Latin America.
Various types of micronutrient malnutrition are important causes of disability in themselves and often underlie other types of morbidity. Their prevalence is even more widespread than that of protein-energy malnutrition.
In sheer numbers, iron is the most prevalent micronutrient deficiency, with n
A. vitamin A deficiency
B. iron deficiency
C. iodine deficiency
D. protein-energy malnutrition

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