F is possible but not the best practice for using it with Cloudfront, in my opinion.
The certificate must be valid at the time of upload. You can't upload a certificate before its validity period begins or after it expires.
https://repost.aws/knowledge-center/import-ssl-certificate-to-iam
Although ACM provides default certificate (option A) but you can only use that for testing and development purposes. You cannot use the default ACM certificate in CloudFront.
C. There is a default CloudFront certificate that you can use in CloudFront distributions. When you create a CloudFront distribution, you have the option to choose the default CloudFront certificate, also known as the "Amazon CloudFront Default Certificate.
D. Use an ACM certificate: You can request a certificate through ACM or import a certificate from a trusted CA. ACM supports issuing certificates that can be used with CloudFront.
F. Use a certificate from the AWS Identity and Access Management (IAM) certificate store: You can upload a certificate directly to IAM and then reference it in CloudFront.
https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_server-certs.html
It's worth noting that AWS KMS, AWS Secrets Manager, and AWS IAM are not directly used for configuring SSL certificates with Amazon CloudFront. While AWS KMS and AWS Secrets Manager can be used for managing encryption keys and secrets, respectively, they are not the primary services used for SSL certificate management in CloudFront. Similarly, AWS IAM is not used for storing SSL certificates for CloudFront.
here is no such thing as a "default CloudFront certificate" in AWS. CloudFront does not have its own certificate, it uses certificates from either AWS Certificate Manager or a custom SSL certificate stored in the AWS IAM. So option C is not correct.
Check this to confirm on Default CloudFront Certificate - Option C is definitely correct.
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cnames-and-https-revert-to-cf-certificate.html
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