The following statements explain how facial recognition systems work and the privacy issues except?

a$)$ A facial recognition system is a technology capable of identifying or verifying a person from a digital image or a video frame from a video source

b$)$ Multiple methods in which facial recognition systems work, in general, they work by comparing selected facial features from a given image with faces within a database

c$)$ Faces are not protected under British law, unlike other biometrics such as DNA and fingerprints

d$)$ The government has been successful since $2012$ to pass legislation updating biometrics protections