What is the routinely most commonly used test for evaluating atherosclerosis in the extracranial vessels?

Correct answer is D) Sonography, or ultrasound, is routinely the most commonly used test for imaging blood vessels and is commonly employed for assessing atherosclerosis in extracranial arteries. A) Incorrect. While MRI is a valuable tool, sonography (ultrasound) is more routinely and commonly used for assessing atherosclerosis in extracranial arteries. B) Incorrect. EEG is not commonly used for visualizing vascular pathology, especially in the context of atherosclerosis. C) Incorrect. EMG is not designed for the assessment of atherosclerosis; it focuses on muscle and nerve function.