A company aggregates raw video uploads into a single S3 bucket in the US, but teams in Europe and Australia experience slow uploads for large files. What are the most cost-effective ways to speed up uploads to that US S3 bucket? (Select two.)

Enabling Amazon S3 Transfer Acceleration utilizes Amazon CloudFront's globally distributed edge locations to route data over an optimized network path to your S3 bucket, significantly reducing latency for distant users. This is a cost-effective way to speed up uploads from Europe and Australia to a US S3 bucket. Implementing multipart uploads for large objects allows you to break a single large object into smaller parts and upload them independently and in parallel. This improves throughput, especially over high-latency networks, and allows for retries of individual parts without restarting the entire upload. AWS Direct Connect and Site-to-Site VPN establish private or encrypted connections, but they primarily address network bandwidth and security, not necessarily optimizing the path over the public internet for S3 uploads from distant regions in a cost-effective manner for this specific use case. AWS Global Accelerator optimizes network paths for applications, but S3 Transfer Acceleration is specifically designed for S3 uploads and is often more direct and cost-effective for this purpose.