What should you include in the recommendation?

Your company, which is named Contoso, Ltd., has a main office and two branch offices. The main office is located in North America. The branch offices are located
in Asia and Europe.
You plan to design an Active Directory forest and domain infrastructure.
You need to recommend an Active Directory design to meet the following requirements:
* The contact information of all the users in the Europe office must not be visible to the users in the other offices.
* The administrators in each office must be able to control the user settings and the computer settings of the users in their respective office.
The solution must use the least amount of administrative effort.
What should you include in the recommendation?

A.
One forest that contains three domains

B.
Three forests that each contain one domain

C.
Two forests that each contain one domain

D.
One forest that contains one domain

Explanation:
* The most basic of all Active Directory structures is the single domain model; this type of domain structure comes with one major advantage over the other models:
simplicity. A single security boundary defines the borders of the domain, and all objects are located within that boundary. The establishment of trust relationships
between other domains is not necessary, and implementation of technologies such as Group Policies is made easier by the simple structure.