Correct Answer:

Iodine

Solution : The correct option is Iodine.

Goitre is typically caused by a lack of iodine in the diet, which causes the thyroid gland to try to generate more thyroid hormone, resulting in enlargement. Goitre can cause a variety of health issues, including hormone abnormalities and swallowing and breathing difficulties. It is preventable and treatable by maintaining enough iodine intake through diet or supplementation.