Which is a consideration when creating a drill-to-detail dashboard component?

Which is a consideration when creating a drill-to-detail dashboard component?
A . The dashboard component type must be a gauge.
B . Drill-to-detail must be enabled on the custom report type.
C . The source report must be stored in the drill-to-detail folder.
D . The source report must be grouped by record name, record owner, or feed post.

Answer: D