Which is the library file that contains various portability macros and definitions?

Which is the library file that contains various portability macros and definitions? Correct Answer my_sys.h

The ‘my_sys.h’ header file contains a variety of portability macros and definitions required for structures and functions. These structures and functions are used by the client library.

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Which library file contains various portability macros and definitions?
Jane, Karim and Leo checked out books from the library. Jane has an even number of library books . Karim has 3 more library books than Jane . Leo has 2 more library books than Karim. Which statement is true about the number of library books Karim and Leo have ?