You have an enterprise subordinate certification authority （CA）.   You have a custom certificate template that has a key length of 1，024 bits. The template is enabled for  autoenrollment.   You increase the template key length to 2，048 bits.   You need to ensure that all current certificate holders automatically enroll for a certificate that uses the  new template.   Which console should you use（）

• A、Active Directory Administrative Center
• B、Certification Authority
• C、Certificate Templates
• D、Group Policy Management