Iodine is administered to patients suffering from

Rheumatism
Night blindness
Rickets
Goitre

The correct answer is (d), Goitre.

Iodine is a mineral that is essential for the production of thyroid hormones. Thyroid hormones are responsible for regulating metabolism, growth, and development. Iodine deficiency can lead to a number of health problems, including goitre, which is a swelling of the thyroid gland.

Rheumatism is a group of conditions that affect the joints, muscles, and bones. Night blindness is a condition in which people have difficulty seeing in dim light. Rickets is a condition in which the bones become soft and weak due to a lack of vitamin D.

Iodine is not administered to patients suffering from rheumatism, night blindness, or rickets.