Which software development model is most suitable for projects with changing…

The Agile model is the most suitable choice for projects with changing requirements because it emphasizes flexibility, iterative development, and continuous customer feedback. Unlike rigid models that require complete upfront planning, Agile allows teams to adapt quickly to new information or shifting priorities through short development cycles called sprints. This iterative approach ensures that the final product aligns closely with evolving user needs. In contrast, the Waterfall model (Option A) and V-model (Option B) are linear and sequential, making them ill-suited for environments where requirements frequently change. These models assume that all requirements are known and stable at the beginning, which often leads to costly rework if changes occur later. While the Spiral model (Option D) does incorporate risk analysis and iteration, it is more complex and typically used for large-scale, high-risk projects rather than general flexibility. Therefore, Agile remains the optimal framework for dynamic project environments.