What do identifiers in a programming language typically denote?

Identifiers in a programming language serve as names that identify various entities within the code. This includes both variables and types, among others. By definition, an identifier can represent a wide range of components such as variables, functions, classes, interfaces, and types.

Understanding this, option C is accurate because it encapsulates the broad spectrum of entities that identifiers can denote, which is not limited to just one type. It reflects the flexibility and specificity that identifiers offer in programming, allowing developers to create meaningful names for different elements within their code.

For example, when you declare a variable, you give it an identifier (a name) so that you can refer to that variable later in your program. The same applies to functions and classes; you name them using identifiers which allows for better organization and readability in your code. This clarity is essential for both writing and maintaining code effectively.