Which of the following is mismatched ?
(a) Vitamin-K -- Beri-beri
(b) Vitamin-D -- Rickets
(c) Vitamin-C -- Scurvy
(d) Vitamin-A -- Xerophthalmia
(a) Beri-beri is caused by the deficiency of vitamin-B (thiamine). Vitamin-K is also known as antihaemorrhagic factor. The main sources of vitamin-K are green leafy vegetables such as cauliflower, cabbage, spinach, etc.
It is also found in animal sources like egg yolk, liver, etc. Vitamin-K is essential for blood clotting and
deficiency of it causes haemorrhage.