Explanation:

Scurvy is a disease resulting from a severe and prolonged deficiency of vitamin C. Vitamin C, also known as ascorbic acid, is essential for the synthesis of collagen, a crucial protein for connective tissues, wound healing, and maintaining healthy blood vessels, bones, and teeth. Symptoms of scurvy include fatigue, swollen and bleeding gums, joint pain, poor wound healing, and skin bruising. Option (C) is correct because ascorbic acid is the chemical name for Vitamin C, and its deficiency causes scurvy. Option (A) is incorrect; Thiamine (Vitamin $\text{B}_1$) deficiency causes beriberi. Option (B) is incorrect; Riboflavin (Vitamin $\text{B}_2$) deficiency can lead to ariboflavinosis, affecting skin, eyes, and mucous membranes. Option (D) is incorrect; Pyridoxine (Vitamin $\text{B}_6$) deficiency can cause neurological symptoms, skin inflammation, and anemia.