Final answer:
Farsightedness is referred to as hyperopia option (A), where the light is not converging sufficiently, focusing behind the retina due to an eye lens with insufficient power or a too short eyeball.
Step-by-step explanation:
The vision term commonly called farsightedness is hyperopia option (A). This condition occurs when light entering the eye does not converge enough, which means the focus point would fall behind the retina. This can be caused by the lens of the eye having insufficient optical power or the eyeball being too short. People with hyperopia can see distant objects clearly but struggle to see close objects, which appear blurry. To correct this, convex lenses are used, which help to change the focus so that images fall directly onto the retina.