Which of the following disorders is best treated by taking medication that contains thyroxin?

Hypothyroidism is best treated by taking medication that contains thyroxin. Thyroxin is a synthetic form of the thyroid hormone that helps to regulate metabolism and other bodily functions. Hypothyroidism occurs when the thyroid gland does not produce enough thyroid hormone, leading to symptoms such as fatigue, weight gain, and depression. Taking medication containing thyroxin can help to alleviate these symptoms and restore normal thyroid hormone levels in the body.