According to the immune surveillance theory,when the immune system is overwhelmed by cancer cells or weakened by stress:

Question

Quizplus · Accepted Answer

The immune surveillance theory suggests that NK cells play a critical role in detecting and destroying cancer cells. When the immune system is weakened or overwhelmed, the activity of NK cells is suppressed, which allows cancer cells to proliferate and grow. Therefore, choice A is the best option. Immunocompetence is not increased, and autoimmune disorders are not necessarily developed as a result of a weakened immune system. T and B lymphocytes may begin to proliferate, but this is not the main factor that determines the success or failure of immune surveillance.

According to the Immune Surveillance Theory,when the Immune System Is