A Company had a security event whereby an Amazon S3 bucket with sensitive information was made public. Company policy is to never have public S3 objects, and th...

A Company had a security event whereby an Amazon S3 bucket with sensitive information was made public. Company policy is to never have public S3 objects, and the Compliance team must be informed immediately when any public objects are identified.
How can the presence of a public S3 object be detected, set to trigger alarm notifications, and automatically remediated in the future? (Choose two.)