"C, 3" refers to a specific programming language, known as C, which is widely used for system and application software development. The "3" typically indicates a version or a specific standard of the language, such as C99 or C11, which introduced new features and improvements over previous versions. C is known for its efficiency and control over system resources, making it a popular choice for developing operating systems, embedded systems, and high-performance applications. Its syntax is relatively simple, allowing programmers to write code that is both powerful and easy to understand.