You have an Azure Data Factory named ADF1 containing a pipeline named Pipeline1.

Pipeline1 needs to run every 30 minutes with a 15-minute offset.

You must create a trigger for Pipeline1 that satisfies the following conditions:

• Backfill data from the start of the day to the current time. • If Pipeline1 fails, allow it to re-execute within the same 30-minute window. • Guarantee that only one instance of the pipeline runs at a time. • Minimize development and configuration effort.

Which trigger type should you use?