To focus on a near object:

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ACiliary muscles relaxed and refraction of lens decreased

BCiliary muscles contracted and refraction of lens decreased

CCiliary muscles contracted and refraction of lens increased

DCiliary muscles relaxed and refraction of lens increased

Answer:

When focusing on a near object, the ciliary muscles located around the lens of the eye contract, causing the lens to thicken and increase its curvature.
This allows the eye to refract light rays from the near object more sharply and bring them into focus on the retina.

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