Question 3
Bleeding from the gums, internal bleeding and slow healing of disease point to a shortage of vitamin C. What is this deficiency disease called?
The right answer is the one marked above.
Scurvy. Weak gums, internal bleeding and wounds that take a long time to heal are its symptoms.
All three follow from what vitamin C does: it takes part in the synthesis of collagen fibres. Collagen is the protein of connective tissue, and tissue that cannot be rebuilt bleeds and heals slowly. Vitamin C is also needed to form the enamel of the teeth.