Pick the wrong statement from the following :

• A
  Sources of Vitamin $B_{1}$ are yeast,milk,green vegetables and cereals
• B
  Deficiency of Vitamin $B_{6}$ $(pyridoxine)$ results in convulsions
• C
  Consumption of citrus fruits and green leafy vegetables in food prevents scurvy
• D
  Deficiency of vitamin $D$ causes xerophthalmia