Which of the following is the least-likely physical characteristic to be used in biometric control that supports a large company?

Voice recognition is an established biometric modality used in enterprise authentication systems, though it can be affected by illness or background noise.

Fingerprints are one of the most widely deployed biometric controls in enterprise environments due to their uniqueness and ease of collection.

Iris pattern recognition is highly accurate and commonly used in high-security enterprise access control systems because iris patterns are unique and stable throughout life.

Biometric controls require characteristics that are unique, stable, and measurable with high accuracy. Height and weight change over time due to aging, illness, or lifestyle, and many individuals in a large population share identical or near-identical measurements, making false acceptance rates unacceptably high. No enterprise-grade biometric system uses height and weight because they lack the discriminatory power needed to distinguish among thousands of employees.