Final answer:
Another major advantage of functionalizing code, apart from efficient reuse, is enhanced code readability, as it makes the code easier to understand, debug, and maintain.
Step-by-step explanation:
Apart from making efficient reuse of code, another major advantage of functionalizing your code is enhanced code readability. By breaking down a program into functions, you can give meaningful names to each function, which helps to document the intent of the code blocks. This approach makes it easier for other programmers to understand the logic and flow of the program. Moreover, it facilitates easier debugging and maintenance, as it is simpler to isolate issues within discrete functions and modify them without impacting the entire codebase.