Which lens is likely to blur a young emmetrope viewing a distant object?

In the context of a young emmetrope, who has no refractive error and is able to see clearly at a distance, a +2.00D lens would cause blurring when viewing distant objects. An emmetrope has a power of 0.00D, which means their eye's natural lens system is perfectly calibrated for distance vision.

When this individual looks through a +2.00D lens, they are effectively adding positive power to their vision, which focuses light rays that diverge for objects that are further away. Since the +2.00 lens converges light to focus on a closer object, the distant object they are trying to see would get focused incorrectly, resulting in a blurred image.

The other choices are related to different concepts. A -2.00D lens would create a clearer image for distant objects as it provides some correction for hyperopia, while prism choices impact the alignment of images, which is not as relevant to the scenario at hand since these do not inherently cause blur for distance viewing in an emmetrope. Thus, the +2.00D lens is the one that will lead to blurring for a young emmetrope viewing distant objects.