C-Facts: The core part of Linux operating system was completely developed in C language.The instructions (called the source code) written in C are saved in a file with .c extension. For eg: Calculator.c. This is the source file.There is a special program called compiler, which is used to compile the source file. Once compiled, an object file with extension .obj is created.There is yet another program called linker, which combines one or more object files to create a single executable file. The executable file can have any extension. For example, files in Windows usually have .exe extension. These files are executed to get the desired output.Click on Live Demo to learn the steps involved in writing and executing a C program. Live DemoSelect all the correct statements from the given statements:Compiler uses the C source file and generates a file with .obj extension.In C the source code is written and saved in a file with .h extension.The file with .obj extension contains machine code.Linking is done after the compilation process is completed.