A 74-year-old man with coronary artery disease presented to the emergency department with 3 days of anorexia and weakness. Computed tomography of the chest was performed, and blood cultures were drawn. What is the most likely diagnosis?
A. Emphysematous aortitis due to Clostridium septicum
B. Granulomatosis with polyangiitis
C. Pyogenic aortitis due to Salmonella enteritidis
D. Syphilitic aortitis due to Treponema pallidum
E. Tuberculous aortitis