This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': 'A 52-year-old woman is started on a low sodium diet. She feels well and is experiencing no symptoms. Her physical examination is normal except for a sustained cardiac apical impulse.For the patient placed on a dietary restriction, select the most likely diagnosis. \nSelect and explain. \nA. diabetes, B. obesity, C. hypertension, D. irritable bowel syndrome', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Some patients with hypertension are salt sensitive, and will lower their blood pressure with salt restriction. Low sodium diets are also recommended in patients with congestive heart failure (CHF), ascites, or chronic renal failure.', 'role': 'assistant'}]