Question

Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?

Answer 1

These look like the symptoms experienced by person suffering from deficiency of calcium (since you said about bleeding and calcium helps in coagulation)

Answer 2

Let me help you in answering this out.

There are  various nutrients needed by the body which includes;vitamins, proteins, carbohydrates, calcium, mineral salts and many others.

• The bleeding of gums, falling of teeth, fragile bones and delayed wound healing occurs when one has calcium deficiency.
• Calcium is the nutrients responsible for strengthening of bones.