A 42 year old female patient suffering from prolonged pyrexia of unknown origin(PUO),cachexia,arthralgia,clubbing,The patient has elevated ESR and complains of occasional chest pain and dyspnoea,The most probable diagnosis is:

• A. Left atrial myxoma
• B. Leiomyosarcoma
• C. Hodgkin's disease
• D. Mitral stenosis