Answer:
b. Autoenrollment is disabled.
Explanation:
Requesting a certificate on a url from a web server is done to prevent unauthorized access to a network. It is mostly adopted in VPN/VPC networks.
When a certificate has been requested and issued from a web server in a web browser, the user certificate is installed and settings can be made by the user or network administrator.
Autoenrollment is automatic for most web server certificate, but group policy settings like selecting "number of authorized signatures" and "supply in the request" settings would make autoenrollment fail or be disabled.
