Answer:
RADIUS
Explanation:
Remote Authentication Dial-In User Service (RADIUS) is a networking protocol that provides centralized Authentication, Authorization, and Accounting management for users connected to a network service. It can be used to authenticate anyone who is on your network.
RADIUS is a protocol that uses TCP or UDP as transport. RADIUS client is what is used to communicate with RADIUS servers at gateways of the network.
I think it's D because it's made out of facts. The other ones are more likely to include bias.
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Instructions written in code that a computer follows are called software programs.
Aerospace, petroleum, and automotive industries
