Which of the following helps in viewing account activity and events for supported services made...

AWS CloudTrail is the service that enables governance, compliance, operational auditing, and risk auditing of your AWS account. It allows you to log, continuously monitor, and retain account activity related to actions across your AWS infrastructure. CloudTrail provides event history of your AWS account activity, including actions taken through the AWS Management Console, AWS SDKs, command line tools, and other AWS services. This event history simplifies security analysis, resource change tracking, and troubleshooting. It is specifically designed for reviewing account activity and events for supported services made by AWS.

References: The information about AWS CloudTrail as a service for viewing account activity and events is detailed in the AWS CloudTrail user guide and is a fundamental aspect of AWS security best practices1.