<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 37-year-old woman comes to the physician because of a 2-week history of palpitations and loose stools. She has had a 2.3-kg 5-lb weight loss over the past month. She has had no change in appetite. She has no history of serious illness. She works in accounting and has been under more stress than usual lately. She takes no medications. She appears pale. Her temperature is 37.8C 100.1F, pulse is 110min, respirations are 20min, and blood pressure is 12678 mm Hg. Cardiopulmonary examination shows no abnormalities. The abdomen is soft and nontender. There is a bilateral hand tremor with outstretched arms and a palpable thyroid nodule in the left lobe. Serum laboratory studies show a thyroid stimulating hormone level of 0.03 μUmL and a thyroxine level of 28 μgdL. A radioactive iodine uptake scan shows enhancement in a 3-cm encapsulated nodule in the lower left lobe with decreased uptake in the remaining gland. Which of the following is the most likely diagnosis?? A: Thyroid storm, B: Papillary carcinoma, C: Graves disease, D: Toxic adenoma, E: Goitern,  <response>: This is a clinical case scenario describing a 37-year-old woman with palpitations, loose stools, weight loss, hand tremors, and a thyroid nodule. The key findings are elevated thyroid hormone levels low TSH, high T4, increased radioactive iodine uptake in a nodule, and hyperthyroid symptoms. The differential diagnosis includes:A Thyroid storm - life-threatening exacerbation of hyperthyroidism. Unlikely given stable vital signs. B Papillary carcinoma - most common thyroid cancer. Does not cause hyperthyroidism.C Graves disease - autoimmune hyperthyroidism. Can cause diffuse goiter and hyperthyroid symptoms. D Toxic adenoma - autonomously functioning nodule causing hyperthyroidism. Consistent with solitary nodule with increased uptake.E Goiter - enlarged thyroid, can be diffuse or nodular. Does not explain hyperthyroidism.Based on the focal radioactive iodine uptake in a solitary nodule with concurrent hyperthyroidism, toxic adenoma is the most likely diagnosis.D: Toxic adenoma 