Your team has an application being served out of AWS S3. There is a surge of increased number of GET requests. After monitoring using Cloudwatch metrics, you can see the rate of GET requests going close to 5000 requests per second. Which of the following can be used to ensure better performance?

Answer options:

A.Add an Elasticache in front of the S3 bucket.
B.Use DynamoDB instead of using S3.
C.Place a Cloudfront distribution in front of the S3 bucket.
D.Place an Elastic Load balancer in front of the S3 bucket.

Answer - C
The AWS Documentation mentions the following.
If your workload is mainly sending GET requests, in addition to the preceding guidelines, you should consider using Amazon CloudFront for performance optimization. By integrating CloudFront with Amazon S3, you can distribute content to your users with low latency and a high data transfer rate. You also send fewer direct requests to Amazon S3, which reduces your costs.
Since the documentation clearly mentions this, all other options are invalid.
For more information, please check the below link.
https://docs.aws.amazon.com/AmazonS3/latest/dev/s3-dg.pdf (page 523)