The first program that many people learn to write in C programming is the "Hello, World!" program. This program simply prints the message "Hello, World!" to the screen. Here is an example of how to write this program:

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}

Let's break this down line by line:

• The first line #include <stdio.h> is a preprocessor directive that tells the compiler to include the standard input/output library, which provides functions for reading and writing to the console.
• The next line int main() { is the beginning of the main function, which is the entry point of the program.
• printf("Hello, World!\n"); is a function call to printf, which is used to print output to the console. The text to be printed is enclosed in quotes.
• The \n at the end of the string is an escape sequence that represents a newline character, which moves the cursor to the beginning of the next line.
• The final line return 0; signals to the operating system that the program has completed successfully.

To run this program, you need to compile the code using a C compiler and then execute the resulting executable file. Once you run the program, you should see the message "Hello, World!" printed to the console.