This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
Scurvy is due to deficiency of 
Select and explain. 
A. Vitamin C, B. Vitamin A, C. Vitamin K, D. Vitamin E
A: Vitamin C
Answer: A: Vitamin C 
Explanation: Deficiency of ascorbic acid results in scurvy, a disease characterized by sore and spongy gums, loose teeth, fragile blood vessels, swollen joints, and anemia. Many of the deficiency symptoms can be explained by a deficiency in the hydroxylation of collagen, resulting in defective connective tissue.Reference: Lippincott; 5th Edition; Page no: 377