Your company has an Active Directory domain. The company has a server named Server1 that has the Terminal Services role and the Terminal Services Web Access role installed. The company has a server named Server2 that runs ISA Server 2006. The company deploys the Terminal Services Gateway （TS Gateway） role on a new server named Server3. The company wants to use ISA as the SSL endpoint for Terminal Server connections. You need to configure the TS Gateway role on Server3 to use ISA 2006 on Server2. What should you do？（）

A. Configure the TS Gateway to use SSL HTTPS-HTTP bridging.
B. Configure the Terminal Services Connection Authorization Policy Store on Server3 to use Server2 as the Central Network Policy Server.
C. Export the SSL certificate from Server2 and install the SSL certificate on Server3. Configure the TS Gateway to use the SSL certificate from Server2.
D. Export a self-signed SSL certificate from Server3 and install the SSL certificate on Server2. Configure the ISA service on Server2 to use the SSL certificate from Server3.