Images are focused by the lens onto the retina which is a face at the back of the eye upon which light sensitive cells (rods and cones) convert the incident light into electrical signals that are transmitted to the brain.
The fovea is a pit directly behind the lens on the retina that contains a concentration of light sensitive, closely packed cones (colour sensitive cells) and is responsible for sharp central vision.
ANSWER:
D. A system of desktops
The given situation represents the example of a clinical/case study of the research method.
<h3>What is a clinical/case study?</h3>
A clinical case study refers to the case study where the doctors share the cases of patients that are not common or not explained before. In this, the permission of the patient should be required for writing the report on the clinical case.
Hence, we can conclude that The given situation represents the example of a clinical/case study of research method.
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