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What is the similarity between a structure, union and enumeration?

  • A.All of them let you define new values
  • B.All of them let you define new data types
  • C.All of them let you define new pointers
  • D.All of them let you define new structures

Answer: B

Correct answer: All of them let you define new data types

Structures, unions and enumerations are all ways of defining a new type - a structure aggregating members, a union overlaying them, an enumeration naming a set of integer constants. Once defined, each can be used to declare variables like any built-in type.

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