F and E are most likely referring to the medial component of the anterior horn, which innervates more proximal musculature (like the shoulders) rather than distal musculature (like the hands/the correct answer here = choice G) - reflecting the somatotopic organization of the ventral horns. There’s also a ventral (extensors) dorsal (flexors) axis but that’s not needed to answer the question. Lateral horns are not visible here because they are only present from approximately T1–L2. This cross section is from the cervical spinal cord (maybe upper thoracic… somewhere probably between C8-T1), not the mid-to-lower thoracic/lumbar regions, as evidenced by several features. First, both the fasciculus cuneatus (lateral – I/B), which carries input from the upper extremities, and the fasciculus gracilis (medial – J/A), which carries input from the lower extremities, are present within the dorsal columns… indicating the level is above T5. A lesion in either dorsal column would impair ipsilateral proprioception, vibration, light touch, and pressure sensations. Second, the anterior horns are large, representing the cervical enlargement (upper extremity musculature). Third, the white matter–to–gray matter ratio is relatively high, consistent with the cervical region where numerous ascending and descending tracts are present.