You are a data engineer working on a project that requires managing a large dataset stored in Delta Lake within Microsoft Azure. The project has strict requirements for data backup processes, including minimizing storage costs and ensuring quick recovery times. The dataset is frequently updated, and you need to implement a backup strategy that efficiently captures changes without duplicating the entire dataset each time. Considering these constraints, which of the following strategies should you use to perform data backups in Delta Lake? Choose the best option and explain why it is the most suitable for this scenario.