Which of the following statements describes subnetworks?

You want to use subnetworks during the project.

Which of the following statements describes subnetworks?
A . Maintenance orders can be defined as sub-network
B. The scheduling type of a subnetwork is always copied from the superior network
C. A subnetwork cannot be defined for a superior subnetwork.
D. Subnetworks must be scheduled separately from the superior network

Answer: D