<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 55-year-old man presents to the hospital with chief complaints of unintentional weight loss, anorexia, fever, and sweating. The patient has pleuritic chest pain, progressive dyspnea, and dry cough. There is no history of orthopnea or paroxysmal nocturnal dyspnea. On examination, the patient is afebrile and pericardial friction rub is noted. ECG shows diffuse ST-segment elevation in V1-V4 along with T wave inversion. Chest X-ray and CT scan show anterior and inferior pericardial eggshell calcification. Echocardiography reveals thickened pericardium and signs of diastolic right ventricular collapse. Pericardial fluid is sent for Ziehl-Neelsen staining to detect acid-fast bacilli. Mycobacterium tuberculosis is detected by PCR. What is the most likely mechanism associated with the patients condition?? A: Metastatic calcifications, B: Dystrophic calcification, C: Primary amyloidosis, D: Secondary amyloidosis, E: Age-related amyloidosis,  <response>: Based on the clinical presentation of unintentional weight loss, anorexia, fever, sweating, pleuritic chest pain, dyspnea, and dry cough, along with pericardial friction rub on exam and ECG findings of diffuse ST elevation and T wave inversion, the most likely diagnosis is pericarditis. The chest X-ray and CT findings of pericardial calcification in an eggshell distribution, along with thickened pericardium and echocardiographic evidence of diastolic RV collapse, further support the diagnosis of constrictive pericarditis. Detection of Mycobacterium tuberculosis by PCR in the pericardial fluid indicates that the most likely etiology is tuberculous pericarditis. Among the answer choices, dystrophic calcification refers to calcium deposition in damaged or dead tissues, which fits with the calcification seen in tuberculous pericarditis. The other types of calcification and amyloidosis do not explain the clinical presentation.B: Dystrophic calcification 