Pollen are small, dry protein particles that are produced by trees, grasses, flowers, and weeds. sometimes, these particles can stimulate the body's immune system. this response is an example of

a. a viral infection.
b. an organ malfunction.
c. an allergic reaction.

C. an allergic reaction

Explanation:

Pollen can generate an immune response which is known as hypersensitivity. Hypersensitivity is an uncontrolled and unregulated immune response. Pollen generates IgE mediated type I hypersensitivity which causes acute inflammation in the body which ultimately result in wheals and flares on the skin. It causes hyper activation of mast cells and basophils which cause vasodilation by releasing molecules like leukotrienes, serotonin and prostaglandins. Asthama and atropic dermatitis are the two diseases which occur due to pollen allergies.

pregnancy happens more and more

answer; i believe the answer is (polygenic inheritance;