You work as the network administrator at ESL, Ltd. The company assigns you a server that runs Windows Server 2008. The server has the following software installed: Default installation of the Web Server (IIS) server role; Microsoft System Center Virtual Machine Manager (SCVMM) 2008 server components. Currently, you attempt to start the Virtual machine Manager (VMM) Self-Service Portal installation but receive an installation error message. Now, you must ensure that you can install the VMM Self-Service Portal. Then what action should you perform to achieve the goal?

A.
You need to install a web server certificate.

B.
You need to install additional Web Server (IIS) server role service.

C.
You need to enable Windows Authentication in Microsoft Internal Information Service.

D.
You need to configure the .NET trust level in Microsoft Internal Information Service to medium.