163. Abstraction

Question.7

Two developers describe their class design goals:

Developer A: "I hide the register pointers so nobody corrupts hardware state."
Developer B: "I expose only connect and send so the user does not need to understand SPI transactions."

Which describes abstraction and which describes encapsulation?

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Both describe abstraction
Developer A describes encapsulation (data protection); Developer B describes abstraction (complexity hiding)
Both describe encapsulation
Developer A describes abstraction; Developer B describes encapsulation

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