Final answer:
The person is most likely showing signs of (B) Contralateral Neglect Syndrome, which involves neglecting one side of their body or space around that side due to brain damage. It affects spatial perception and attention.
Step-by-step explanation:
The person is most likely showing signs of Contralateral Neglect Syndrome. This syndrome refers to a condition in which an individual neglects one side of their body or the space around that side, typically due to damage in the contralateral (opposite) side of the brain.
When only paying attention to and drawing half of a picture, it suggests a neglect of the other half, indicating a potential issue with spatial perception and attention.