What is the purpose of the self-provider option within the dashboard definition?

What is the purpose of the self-provider option within the dashboard definition?
A . If Refresh Content is enabled, it will specify how often to refresh the data in the widget display.
B. It can create a custom set of metrics to support widgets with meaningful data.
C. It enables or disables the automatic refreshing of the data in the widget display.
D. It indicates whether objects appearing in the widget are defined in the widget or are provided by another widget source.

Answer: D