A 55-year-old man complains of severe pain between his shoulder blades, which he describes as "ripping" in nature. He tells you that the pain began suddenly and has been intense and unrelenting since its onset. His medical history includes hypertension, and he admits to being non compliant with his antihypertensive medication. Which of the following assessment findings would MOST likely reinforce your suspicion regarding the cause of his pain?

A. ST-segment depression on the 12-Lead ECG tracing
B. Difference in blood pressure between the two arms
C. Bruits to both carotid arteries during auscultation
D. Disappearance of radial pulses during inspiration