you need to do before you can deploy an RODC in the Barcelona office?

Topic 2
2, Weyland Technical Solutions (WTS) Ltd.
Company Background
Weyland Technical Solutions is an IT company who provide hosted or managed services to small
to medium-sized companies in central USA
The company is located in a single site in Weyland,
Kansas.
The company currently has 1500 employees.
Existing Environment
Existing Active Directory Environment
The network consists of a single Windows Server 2008 R2 Active Directory Domain Services (AD
DS) domain named WTSltd.com. The forest functional level is Windows Server 2008.
The network contains four physical domain controllers. All domain controllers are configured as
DNS Servers.
Network Infrastructure
The network is divided into four subnets. All servers are located in a data center located in the
WTS site.

The data center includes the following servers:
Four physical Windows Server 2008 R2 DHCP Servers.
Eight physical Windows Server 2008 R2 file servers.
Six physical Windows Server 2008 R2 print servers.
Four physical Windows Server 2008 R2 domain controllers.
One physical Windows Server 2008 R2 HyperV host server.
All client computers run either Windows 7 or Windows 8.
Business Requirements
Planned Changes
Deploy new Windows Server 2012 Hyper-V host servers.
Implement a VPN solution for external workers.
Implement RADIUS authentication for the VPN connections.
Implement Network Access Protection (NAP).
Implement Active Directory Recycle Bin
Technical Requirements
Weyland Technical Solutions has the following technical requirements:
Migrate all servers to Windows Server 2012.
Virtualize existing physical servers where possible.
Deploy virtual domain controllers using virtual machine cloning.
DHCP IP address leases must be logged centrally.
Centrally manage Network Access Protection (NAP) policies.
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You work as a Network Administrator for Testking.com. The network consists of a single Windows
Server 2003 R2 Active Directory domain named Testking.com. All servers in the domain run
Windows Server 2003 R2.
The company has a main office in London. A domain controller named TK-LonDC1 in the London
office runs all the FSMO roles.
A branch office in Madrid is connected to the main office by a reliable WAN link. A server named
TK-MadDC1 is configured as a domain controller in the Madrid office.
The company plans to open a branch office in Barcelona. The Barcelona office connects to the
Madrid office by a reliable WAN link.
An Active Directory site exists for each of the three offices.
You plan to install a read-only domain controller (RODC) in the Barcelona office.
What would you need to do before you can deploy an RODC in the Barcelona office?

A.
Replace TK-LonDC1 with a Windows Server 2012 domain controller.

B.
Configure a site link between the Barcelona and London sites.

C.
Replace TK-MadDC1 with a Windows Server 2012 domain controller.

D.
Enable site link bridging in the Madrid site.