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Instructor III 

Q. What will happen if a header file is included in a program twice?

  • (A) Program will throw an error
  • (B) Program will throw an exception
  • (C) Program will run normally
  • (D) None of these
Explanation by: Team MCQ Buddy 
When the same header is included twice in the program, the compiler will throw an error as its teens to process it twice.

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