Answer:
Biometrics
Explanation:
Biometrics -
It refers to the method to detect any individual on the basis of face , iris , fingerprints , voice and handwriting , is referred to as biometrics .
The method is most commonly employed for the purpose of attendance of the people entering or leaving the respective place .
As each person have different voice , face , fingerprint , hence faking a biomerics is very difficult .
Hence , from the given information of the question ,
The correct answer is biometrics .