C. Use CloudFront Signed Cookies
Answer: C
Explanation
Option A is incorrect. CloudFront signed URLs allow you to restrict access to individual files. It requires you to change your content URLs for each customer access.
Option B is incorrect. S3 Presigned URLs require you to change your content URLs. The presigned URL expires after its defined expiration date.
Option C is correct. CloudFront Signed Cookies allow you to control access to multiple content files and you don’t have to change your URL for each customer access.
Option D is incorrect. There is no S3 Signed Cookies feature.