Extramission theory states that rays are emitted from the eye toward objects.

• A. Rays are emitted from the eye toward objects
• B. Rays are reflected off objects into the eyes
• C. Vision arises from neurons within the skin
• D. Vision is generated by the air around objects

Answer: (A)

Vision has been explained historically by two ideas: extramission, where the eye emits rays toward objects, and intromission, where rays from objects enter the eye. The statement given matches extramission, since it asserts that rays are emitted from the eye toward objects. That direct claim is what this theory proposes, making it the best description of extramission. The other ideas do not fit: describing rays as reflected off objects into the eyes aligns with the intromission view, while suggesting vision arises from neurons in the skin or from the air around objects does not describe how sight works.