What should you do to schedule the pipelines for execution?

You have the following Azure Data Factory pipelines

• ingest Data from System 1

• Ingest Data from System2

• Populate Dimensions

• Populate facts

ingest Data from System1 and Ingest Data from System1 have no dependencies. Populate Dimensions must execute after Ingest Data from System1 and Ingest Data from System* Populate Facts must execute after the Populate Dimensions pipeline. All the pipelines must execute every eight hours.

What should you do to schedule the pipelines for execution?
A . Add an event trigger to all four pipelines.
B . Create a parent pipeline that contains the four pipelines and use an event trigger.
C . Create a parent pipeline that contains the four pipelines and use a schedule trigger.
D . Add a schedule trigger to all four pipelines.