Which of the following is an example of a biometric authentication method?

Biometric authentication methods are designed to verify an individual's identity based on unique physiological or behavioral characteristics. Fingerprint recognition is a prime example of this, as it uses the distinct patterns found on an individual's fingertips for identification. This method relies on unique biological traits, making it highly personal and difficult to replicate or forge. In contrast to options that involve something one knows (like a password) or something one has (like a token or a session timeout), biometric authentication directly links an individual’s identity to physical attributes, enhancing security and convenience in confirming a user's identity. Therefore, fingerprint recognition distinctly aligns with the definition of biometric systems, emphasizing the reliance on measurable biological features.