In programming, what is the primary use of functions?

Functions play a crucial role in programming by allowing developers to encapsulate specific tasks or operations into reusable blocks of code. When a function is defined, it can be called multiple times throughout a program, which promotes code reusability and organization. This allows programmers to break down complex problems into smaller, manageable pieces, making the code easier to read, maintain, and debug.

The correct option emphasizes that functions are primarily used to perform specific tasks. This means that each function can be designed to execute a defined action, such as calculating a value, processing data, or even managing user inputs. This modular approach is fundamental in programming, as it leads to cleaner code and more efficient development practices.

The other choices relate to different aspects of programming but do not accurately capture the core purpose of functions. Functions do not exist to increase file sizes, nor are they solely responsible for error handling, although they can include error handling as part of their task. Additionally, while functions can be involved in creating audio samples in specific programming contexts, that is not their primary purpose across programming as a whole.