A 34-year-old female, conscious, alert, and oriented, is complaining of a three-week history of increased appetite, weight loss, weakness, insomnia, and inability to tolerate heat. She has recently been frequently agitated and prone to mood swings. Based on these signs and symptoms, which of the following best describes the additional findings you could expect?

A) Hyperpigmentation of the skin and hirsutism
B) Heart block and hypotension
C) Enlarged tongue and cool, puffy skin
D) Exophthalmos and goiter

D