Question: What is an include guard?
- a preprocessor directive that prevents inconsistent behaviors in lines that contain the #ifdef, #ifndef, or #elif directives
- a compiler option that prevents the user code from including additional libraries
- a preprocessor statement that prevents a source file from being included more than once in a project
- a library that adds safety features such as mutexes, watchdog timers, and assertions to the project
Answer: The correct answer of the above question is Option C:a preprocessor statement that prevents a source file from being included more than once in a project