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UPSC Prelims 2014Question 66Science & Technology

In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
1. Irs scanning
2. Retinal scanning
3. Voice recognition
Select the correct answer using the code given below.

Options

  1. (a)1 only
  2. (b)2 and 3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3

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