Which of the following is used for outputting text on the console in C?

The correct choice is "printf" because it is the standard function in C specifically designed for outputting formatted text to the console. It allows programmers to display strings, numbers, and other data types in a variety of formatting styles using format specifiers. For instance, using "%d" to print an integer or "%s" to print a string provides both functionality and versatility in how output is presented to the user.

The other options serve different purposes. "scanf" is used for input, allowing the program to read data from the console, while "getchar" is used for reading a single character from the input. "write" is a system call used in lower-level programming, usually associated with writing output to file descriptors and not specifically for console output in standard C programming context. Therefore, "printf" is the appropriate choice for outputting formatted text on the console.