Goitre is caused by the deficiency of
-
iron
-
iodine
-
glucose
-
calcium
B
Correct answer
Explanation
Iodine deficiency causes the thyroid gland to enlarge (goiter) as it struggles to produce thyroid hormones. The gland grows trying to compensate for insufficient iodine needed for hormone synthesis. Iron deficiency causes anemia, calcium deficiency affects bones.