Which of the following offers greater accuracy then the others?

A.
Facial recognition

B.
Iris scanning

C.
Finger scanning

D.
Voice recognition

Explanation:
Iris scanning offers greater accuracy than finger scanning, voice or facial
recognition, hand geometry or keystroke analysis. It is safer and less invasive than
retinal scanning, an important legal consideration [Nuger]. Any company thinking of
using biometrics would do well to ensure that they comply with existing privacy laws.