Which of the following is a measure of biometrics performance which rates the ability of a system to correctly authenticate an authorized user?

Failure to capture (FTC) is the rate at which the system cannot obtain a usable biometric sample from a user, not an authentication accuracy measure.

In biometric systems, Type II error is the False Acceptance Rate - the rate at which the system incorrectly accepts an unauthorized individual. This metric directly rates the system's authentication decision-making and is a primary performance indicator for evaluating how reliably a biometric system handles authentication attempts.

Mean time to register describes how long enrollment takes for new users, not authentication performance.

Template capacity is the maximum number of biometric templates a system can store, not a performance accuracy metric.