Answer:
a. "IgA deficiency is a secondary immunodeficiency."
Step-by-step explanation:
Selective IgA deficiency is primary and non-secondary immunodeficiency, so if a student says LgA deficiency is a secondary immunodeficiency, we can conclude that this student needs further study of the disease.
This immunodeficiency causes individuals to be deficient in the production of immunoglobulin A, the result of which is that infected people have immunity problems and may have serious infections in the mouth, airway and digestive tract.