A business maintains a portfolio of e-commerce websites throughout the AWS regions of Oregon, North Virginia, Ireland, a

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A business maintains a portfolio of e-commerce websites throughout the AWS regions of Oregon, North Virginia, Ireland, and Sydney. Each site maintains log files containing information about user activity. In Oregon, the firm developed an application that uses collaborative filtering to produce batches of product suggestions. Oregon was chosen because it hosts the flagship site and has the biggest amount of data on which to train machine learning models. The remaining areas lack the historical data necessary to build effective machine learning models.

Which collection of data processing processes optimizes regional recommendations?

A. Use the e-commerce application in Oregon to write replica log files in each other region.
B. Use Amazon S3 bucket replication to consolidate log entries and build a single model in Oregon.
C. Use Kinesis as a buffer for web logs and replicate logs to the Kinesis stream of a neighboring region.
D. Use the CloudWatch Logs agent to consolidate logs into a single CloudWatch Logs group.