Which of the following is NOT an example of Personally Identifiable Information (PII)?

The choice of smartphone brand and model is not considered Personally Identifiable Information (PII) because it does not directly identify an individual or provide information that can be used to trace back to them personally. PII typically includes information that, when combined with other data, can lead to the identification of a specific individual. The other options all contain data that can potentially link back to a specific person.

Fingerprint records are unique biometric identifiers that can be used to confirm an individual's identity, making them a strong form of PII. Similarly, a mother's maiden name is often used in security questions and can be tied to a specific individual's identity. Payment information for healthcare services can also identify an individual directly due to the context of the transaction and the associated information involved. Therefore, while smartphone brand and model can indicate consumer preferences, they lack the specificity needed to qualify as PII.