You are the network administrator for The network consists of a single Active Directory domain named All servers run Windows Server 2003. One domain controller on the network is configured as a certification authority (CA). The network contains a Web server that runs IIS 6.0 and hosts a secure intranet site. The server also hosts other sites that do not require HTTPS. You configure a server certificate on the IIS server by using a certificate from your internal CA. All users are required to connect to the intranet site by using HTTPS. Some users report that they cannot connect to the secure intranet site by using HTTPS. You confirm that all users can connect to the nonsecure sites hosted on the Web server by using HTTP. You want to view the failed HTTPS requests. What should you do?（）

A. Review the log files created by IIS on the Web server.
B. Review the security log in Event Viewer on the Web server.
C. Review the security log in Event Viewer on the ca.
D. Review the contents of the Failed Requests folder on the ca.