With advancing age, people become more susceptible to infections and malignancies because
A)T cells are less responsive to antigens.
B)fewer T cells are present.
C)the thymus gland atrophies.
D)B cells are less responsive.
E)all of the choices are correct.

Question

Quizplus · Accepted Answer

As people age, all of the mentioned factors contribute to their increased susceptibility to infections and malignancies. T cells become less responsive and their numbers decrease, while the thymus gland atrophies. B cells also become less responsive, leading to a weakened immune response overall.

With Advancing Age, People Become More Susceptible to Infections and Malignancies