This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutritional anemia, Subject name: Pediatrics
[{'content': 'In which condition, the following finding in tongue is commonly seen? \nSelect and explain. \nA. Sickle cell anemia, B. AML, C. Iron defciency anemia, D. MDS', 'role': 'user'}, {'content': 'Answer: C \nExplanation: - Smooth & shiny tongue (glossitis) is seen in severe iron deficiency anemia IRON DEFICIENCY ANEMIA: - MC cause of nutritional disorder in the world - MC cause of anemia in the world CLINICAL FEATURES: Smooth tongue Pallor, fatiguability Pica koilonychia - spooning of nails Peripheral Smear: Microcytic Hypochromic Anemia ,anisocytosis, target cells & pencil cells are seen. MENTZER INDEX: >14', 'role': 'assistant'}]