What defines modular programming?

Modular programming is defined as a method that separates a program into distinct components. This approach focuses on dividing a program into smaller, manageable sections known as modules, which can be developed, tested, and maintained independently of one another. Each module typically encapsulates a specific functionality or a set of related functions, which enhances code readability, reusability, and maintainability.

By structuring software in this way, developers can work on different modules simultaneously, reducing complexity and the likelihood of errors. Additionally, if a particular module requires updates or fixes, it can often be modified without needing to alter the entire program, thus promoting efficient development practices.

The other choices do not accurately represent the essence of modular programming. For instance, the idea of developing software without any modules contradicts the fundamental principle of modular programming. A large block of code would negate the modularity aspect by making maintenance and understanding more challenging. Lastly, while certain programming techniques do prevent interference among components, this is not a defining characteristic of modular programming itself.