CEH v9 Question of the Week: Retina Scanners

Which of the following is true with regards to retina scanners?

A. Retinal scan is a biometric technique that uses the unique patterns on a person’s retina blood vessels.
B. Retinal scan is an automated method of biometric identification that uses mathematical pattern-recognition techniques on video images of the eyelids of an individual’s eyes, whose complex random patterns are unique and can be seen from some distance.
C. Retinal Scan is a technique of biometric identification through the analysis of the patterns of blood vessels visible from the surface of the skin.
D. None of the choices

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