121. Lesion or inactivation of the red nucleus, or of the rubrospinal tract leads to deficits in the use of the

A. Ipsilateral proximal limb
B. Ipsilateral distal limb
C. Contralateral proximal limb
D. Contralateral distal limb
E. Both upper limbs

90. A 22-year-old man is brought to the emergency department after a fight during which he received a knife wound to his neck. The patient is in moderate distress but is alert and can follow commands. Vital signs are stable. Neurologic examination shows right-sided hemiplegia. Loss of proprioception and vibratory sensation is present below the C8 dermatome on the right side. On the left side, there is loss of pain and temperature sensation below the T2 dermatome. MRI of this patient's spine will most likely reveal which of the following?

Which nerve is most likely injured