Option B is correct because it directly addresses the requirement for sequential task execution with dependencies, aligning with Azure's best practices for workflow management. This approach ensures that each task only starts after its predecessor has successfully completed, maintaining data integrity and workflow correctness. It also leverages Azure's native features for task dependency management, offering a balance between cost-efficiency, scalability, and compliance with recommended patterns. Options A, C, and D either fail to properly manage task dependencies, introduce unnecessary complexity and cost, or risk compromising the workflow's integrity, making them less suitable for the described scenario.