In hand injury first structure to be repaired among the following is a.nerves b.skin c.tendons d.bone?

The correct answer is "b".

In a hand injury, the skin is the first structure to be repaired because it is the most vulnerable and prone to damage. The skin provides a protective barrier against infection and helps to maintain the integrity of the hand. Therefore, it is essential to prioritize the repair of the skin to prevent further damage and infection.