Which systems utilize unique biological features for identification purposes?

The correct choice is the option that refers to systems specifically designed to identify individuals based on their unique biological characteristics. Biometric systems utilize distinct physical traits, such as fingerprints, facial recognition, iris patterns, or voice patterns, to verify or recognize a person’s identity. This technology is grounded in the fact that these biological features are unique to each individual and can provide a high level of security and accuracy in identification processes.

The other options mentioned do not focus on biological identification. Identification systems may encompass a broad range of technologies and methods for recognizing individuals, but they are not exclusively reliant on biological features. Security cameras are primarily visual surveillance tools without biometric capabilities, and alarm systems serve to monitor and alert against unauthorized access but do not involve personal identification methods based on biological traits.