Which statement is NOT true about functions in programming?

The statement that functions cannot make calls to other functions within the same program is not true. In programming, functions are often designed to promote modularity and code reuse, which means that they can call other functions as needed to accomplish specific tasks. This capability is a fundamental aspect of how functions operate in many programming languages. By allowing functions to call one another, programmers can create more organized and manageable code, where complex operations can be broken down into simpler, smaller, and reusable components.

The other statements accurately describe the characteristics and benefits of functions in programming. Functions indeed serve as reusable programming abstractions, which helps reduce the complexity of writing and maintaining software, as well as facilitating the process of breaking problems into logical, manageable chunks. This structure enhances readability and maintainability, making it easier for developers to understand and work with code over time.