A 55-Year-Old Right-Handed Man Arrives at the Emergency Room with a Severe

A 55-year-old right-handed man arrives at the emergency room with a severe, throbbing right-sided headache and double vision. His medical history includes uncontrolled hypertension and a long history of cigarette usage. A neurologic evaluation reveals that he is awake, attentive, and oriented, as well as capable of following orders. Both the visual fields and the optic fundi are normal. The right eye is down and out with ipsilateral ptosis, and the right pupil is dilated and nonresponsive to light and accommodation. The examination of the left eye is normal. Based on this patient's neurologic impairments, which of the following regions in the picture below is most likely to disclose an aneurysm?

A) A
B) B
C) C
D) D
E) E
F) F
G) G
H) H