Which of the following is a technique for hiding the internal implementation details of an object?

Which of the following is a technique for hiding the internal implementation details of an object?

  1. a) Encapsulation
  2. b) Polymorphism
  3. c) Inheritance
  4. d) All of the above

From the Sonali & Janata Bank Assistant Database Administrator September 2021 – Preliminary (AUST) exam, question 29 of 93.

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