Eye Accommodation for Distant Vision Steps:

• For distant objects, parallel light rays require minimal lens convergence.
• Ciliary muscles relax, reducing tension on the suspensory ligaments.
• Lens becomes thinner and flatter to focus rays on the retina.
• Pupil dilates slightly to allow more light, but primary changes are muscle relaxation and lens flattening.

Why C is correct:

• Option C (2 and 3) matches the accommodation process where ciliary muscle relaxation (2) flattens the lens (3) for distant focus, per the Helmholtz theory of accommodation.

Why the others are wrong:

• A includes 1 (pupil constriction), which occurs for near vision, not distant.
• B includes 1 (pupil constriction) and 4 (cornea steepening), both incorrect for distance.
• D includes 4 (cornea steepening), which does not occur; cornea shape remains constant.

Final answer: C