Based on the graph above which letter indicates the onset of hematoma at the break site?
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The right answer is B.
A hematoma is a mass of blood that appears inside a tissue after a haemorrhage that occurs following a shock (for example, after receiving a punch). It can lead to detachment and swelling of the skin.
Hematomas can cause superficial bruising, but can also develop deep or in organs such as the brain.