This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All of the following are seen in pheochromocytoma. Except 
Select and explain. 
A. Headache, B. Sweating episodes, C. Weight loss, D. Hypocalcemia
D: Hypocalcemia
Answer: D: Hypocalcemia 
Explanation: Answer is D (Hypocalcemia): Pheochromacytomas may be associated with hypercakemia and are not associated with hypocalcemia. Clinical Features Associated with Pheochromocytoma Headaches Sweating attacks Palpitations and tachycardia Hypeension, sustained or paroxysmal Anxiety and panic attacks Pallor Nausea Abdominal pain Weakness Weight loss Paradoxical response to antihypeensive drugs Polyuria and polydipsia Constipation Ohostatic hypotension Dilated cardiomyopathy Erythrocytosis Elevated blood sugar Hypercalcemia