Final answer:
Recognition by fingerprint, retina, and face refers to static biometrics, which uses physical traits for identification and access control in IT security. The correct option is A).
Step-by-step explanation:
Recognition by fingerprint, retina, and face are examples of static biometrics. Biometrics refers to the methods for uniquely recognizing humans based upon one or more intrinsic physical or behavioral traits. In IT security, biometric verification is used in identification and access control.
Static biometrics is about the measurable physical characteristics that do not change over time. Dynamic biometrics, on the other hand, refers to behavioral traits such as keystroke patterns or voice recognition which may change and therefore need to be measured over a period of time. Option A) is the correct one.