Final answer:
The statement that using functions improves program readability by reducing the complexity of the main function is true, as functions organize code into smaller,
Step-by-step explanation:
The statement "Using functions greatly enhances a program's readability because it reduces the complexity of the main function" is true. When programmers use functions, they organize code into smaller, manageable parts.
This practice not only makes the main function of a program less complex but also helps in breaking down the program into logical segments, each performing a specific task.
Moreover, functions provide several benefits such as reusability, where the same function can be called multiple times throughout a program, and modularity, which allows for independent development and testing of different parts of the program
Finally, functions enhance the maintainability of the program, because when a change is required, a programmer might only need to modify a single function rather than sift through the entire codebase if it were all contained within the main function.