An organization uses AWS CloudTrail to monitor API activity. An audit shows CloudTrail is not delivering events to the configured Amazon S3 bucket. Which initial actions should be taken to restore delivery of CloudTrail events to S3? (Choose two.)

CloudTrail requires specific permissions to deliver logs to an S3 bucket. If events are not being delivered, the most common causes are that the target S3 bucket either does not exist or the bucket policy does not grant CloudTrail the necessary write permissions. Therefore, verifying the existence of the S3 bucket and confirming the S3 bucket policy allows CloudTrail to write objects are essential initial troubleshooting steps. Verifying the IAM role for CloudWatch Logs is incorrect because the issue is with S3 delivery, not CloudWatch Logs. Removing S3 lifecycle policies is unlikely to be the root cause of initial delivery failure, though it could affect long-term storage. The log file prefix does not need to pre-exist in the S3 bucket; CloudTrail will create it.