Multiple choice

In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?

  1. Iris scanning
  2. Retinal scanning
  3. Voice recognition

Select the correct option from the following.

  1. 1 only

  2. 2 and 3 only

  3. 1 and 3 only

  4. 1, 2 and 3

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

1, 2 and 3