What should the user do so that the feature class is able to participate in a geometric network?

An ArcMap user is creating a new feature class that will participate in a geometric network.

What should the user do so that the feature class is able to participate in a geometric network?
A . Make sure the feature class is z-enabled
B . Make sure that the line is the geometry type for the feature class
C . Make sure the feature class resides within a feature dataset
D . Make sure that a geographic coordinate system is assigned to the feature class

Answer: C

Explanation:

Reference: https://desktop.arcgis.com/en/arcmap/latest/manage-data/geometric-networks/creating-newfeature-classes-for-your-geometric-ne.htm