What does modularization in programming primarily enhance?

Modularization in programming primarily enhances code clarity and reusability. By breaking down a program into smaller, self-contained modules, each responsible for a specific functionality, developers can manage code more effectively. This organization makes it easier to read, understand, and maintain the codebase.

Modules can be reused across different parts of a program or even in different projects, which saves time and effort. When changes are needed, developers can modify a specific module without having to rewrite the entire application. This practice not only streamlines the development process but also encourages collaboration among programmers, as they can work on different modules independently.

While other options touch on relevant aspects of programming, such as performance enhancement or data management, they do not capture the fundamental essence of modularization like code clarity and reusability do.