Final Answer:
Areas of hypoxia result from rapid and uncontrolled growth of tumours which fail to lay down effect capillary or bloody supplies to support the tumour cells. Therefore, the tumour may suffer from either Necrosis or apoptosis (option A).
Step-by-step explanation:
Areas of hypoxia in rapidly growing tumors result in a lack of adequate blood supply, leading to either necrosis or apoptosis (option A). Necrosis refers to the premature death of cells caused by factors like lack of oxygen, while apoptosis is a controlled process of programmed cell death.
The rapid and uncontrolled growth of tumors can outpace the development of a proper vascular network, leaving certain regions oxygen-deprived. In response, cells may undergo necrosis due to the harsh microenvironment.
Alternatively, the cells may activate apoptosis, a mechanism designed to eliminate damaged or unnecessary cells. Understanding these cellular responses is critical in cancer research and treatment strategies, as they influence the tumor's behavior and response to therapies.