A vitamini qaysi organlarning funksional holatini normal holatda saqla

A) 1,2,3

9. (99-5-46) A vitamini qaysi organlarning funksional holatini normal holatda saqlashda muhim rol oynaydi? 1) terining ustki qavati; 2) nerv sistemasida qozgalishning normal otishi; 3) nafas yollari epiteliy qavati; 4) markaziy nerv sistemasida tormozlanish jarayonining normal otishida; 5) ovqat hazm qilish organining shilliq qavati; 6) odamning aqliy faoliyatining yaxshi bolishida. A) 1,2,3 B) 1,4, 6 C)1,3, 5
D) 2, 3, 6
E) 2, 4, 5