<span>All of the following are the results of an overreactive immune system to harmless antigens except B) </span>Aids.
I hope this helps! :)
~ erudite
There is still no accurate explanation as to why
the thyroid glands enlarge during goitre. It occurs more frequently in women
than in the opposite sex. They are mostly harmless but it is advisable to see a
doctor once there is a sign of a lump.