Which of the following is a common clinical manifestation of immunodeficiency disorders?

Explanation: The correct answer is b. Genetic or inherited defects. Immunodeficiency disorders are primarily caused by genetic mutations or defects that result in a weakened or impaired immune system.

Incorrect choices:

a. While environmental factors can contribute to the development of secondary immunodeficiency disorders, they are not the primary cause of most immunodeficiency disorders.

c. Autoimmune reactions are not the primary cause of immunodeficiency disorders. Autoimmune disorders involve the immune system attacking the body's own tissues, not a deficiency in the immune system.

d. Excessive production of white blood cells is not the primary cause of immunodeficiency disorders. In fact, immunodeficiency disorders are characterized by a deficiency or impairment of white blood cells, which are essential components of the immune system.

Explanation: The correct answer is c. Autoimmune diseases are a potential complication of primary immunodeficiency disorders. When the immune system is deficient or dysfunctional, it may fail to distinguish between self and non-self antigens, leading to the development of autoimmune diseases.

Incorrect choices:

a. Hypertension is a condition characterized by high blood pressure and is not directly related to primary immunodeficiency disorders.

b. Chronic fatigue syndrome is a complex disorder with unknown causes and is not directly related to primary immunodeficiency disorders.

d. Diabetes mellitus is a metabolic disorder caused by insufficient insulin production or insulin resistance and is not directly related to primary immunodeficiency disorders.