What does top-down design in programming allow for?

Top-down design in programming is a methodology that involves breaking a complex problem into smaller, more manageable pieces. This approach allows developers to focus on the overall structure and functionality of the application without getting bogged down by specific details in the initial stages of design.

By starting with a high-level overview and gradually adding more detail, top-down design effectively hides irrelevant details and helps manage complexity. This allows programmers to concentrate on how components interact with one another rather than being overwhelmed by the intricacies of each component at the outset.

In this context, the other options do not align with the fundamental principle of top-down design. For instance, creating multiple redundant functions would not effectively manage complexity. Similarly, directly implementing complex algorithms without simplification goes against the very essence of breaking down problems. Finally, while creating nested loops may be a part of programming, it does not inherently relate to the benefits of top-down design, which prioritizes a systematic approach to decompose tasks rather than writing intricate loops for every small task directly.