The right lower limb is unaffected. An MRI scan would reveal signs of a stroke in which of the following areas?

A 60-year-old male patient is brought to the hospital following sudden onset of weakness and sensory loss in the right face and upper limb. The right lower limb is unaffected. An MRI scan would reveal signs of a stroke in which of the following areas?
(A) in the territory of the left anterior cerebral artery
(B) in the territory of the left middle cerebral artery
© in the territory of the left posterior cerebral artery
(D) in the territory of the right middle cerebral artery
(E) in the territory of the right posterior cerebral artery