Which biometric method provides a one-to-many identification by storing full fingerprints?

Fingerprint scanning is the correct choice as it facilitates one-to-many identification by capturing and storing full fingerprints. This method relies on unique patterns of ridges and valleys found on an individual's fingertips. During the identification process, a person's fingerprint is compared against a database that contains the full fingerprints of multiple individuals. This enables systems to quickly and accurately match the submitted fingerprint with those stored, allowing for efficient identification among a large population.

The technology behind fingerprint scanning utilizes various algorithms to analyze these unique patterns, making it a widely used biometric method in security systems and law enforcement. In contrast, other biometric methods, like retina scans, iris scans, and facial scans, may also provide identification capabilities but they typically focus on one-to-one verification rather than efficiently searching through a larger population for multiple potential matches in a single identification attempt.