non-infectious and increase secretions of IgE antibodies and histamines
infectious and increase secretion of IgM antibodies and histamines
non infectious and decrease secretion of IgG antibodies
infectious and increase secretion of IgE antibodies.
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The Correct Option isA
Solution and Explanation
Allergen is a foreign substance or agent that produces hypersensitivity in an individual, e.g., pollen, spores, dust, scent, wool, silk, drug, fur, feathers etc.