A 25-year-old presents with fatigue, iron-deficiency anemia, bloating, and diarrhea. Tissue transglutaminase IgA antibody is markedly elevated. Small bowel biopsy shows villous atrophy and crypt hyperplasia. What dietary modification is curative?
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A
Strict gluten-free diet
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B
Lactose-free diet
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C
Low-FODMAP diet
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D
Low-fat diet