Which is a autoimmune disorder caused by hyperthyroidism characterized goiter or exophthalmos?

The correct answer is c. Graves' disease

Based on the given description, the condition most likely refers to Graves' disease. Graves' disease is an autoimmune disorder that results in the overproduction of thyroid hormones, leading to a condition known as hyperthyroidism. It is characterized by symptoms such as goiter, which is an enlargement of the thyroid gland, and exophthalmos, which refers to the bulging or protrusion of the eyeballs.