Answer:
The right answer is d. Perfusion.
Step-by-step explanation:
Perfusion is a process in which cells are oxigenated during its transport trough circulatory or linfatic system. Usually this process is necesary for good condition of tissues and so, it does not involves necrosis.
In the case of infection, blood clot and injury, there are cell necrosis, given by the activity of microorganisms, phisyology or by meachanic lession