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

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 answer using the code given below:

(a)

1 only

(b)

2 and 3 only

(c)

1 and 3 only

(d)

1, 2 and 3 only

Answer:

(d)

CA

Explanation

Both Iris and Retina scanning in Biometric id uses near infrared (NIR) light using digital camera.