A 29-year old man was brought to the emergency department following a motor vehicle collision. He has normal pupillary light reflexes, unsteady gait, and loss of pain and temperature sense on the left side of his body and right side of his face. He most likely has a lesion in which of the following areas?
A) Periventricular area of the rostral midbrain B) Tegmentum of the rostral pons C) Ventrolateral medulla D) Periventricular medulla E) Thalamus bilaterally