You're attempting to remove an SSL certificate from the IAM certificate store and get the following message: "Certificate: certificate-id> isCurrently in use by CloudFront."Which of the following assertions is most likely the cause of this error?
选项：

A:Before you can delete an SSL certificate you need to set up https on your server.
B:Before you can delete an SSL certificate, you need to set up the appropriate access level in IAM
C:Before you can delete an SSL certificate, you need to either rotate SSL certificates or revert from using a custom SSL certificate to using theDefault CloudFront certificate.
D:You can't delete SSL certificates. You need to request it from AWS.