The correct answer is D, Amazon Macie. Amazon Macie is a fully managed data security and data privacy service that uses machine learning and pattern matching techniques to automatically discover, classify, and protect sensitive data stored in AWS, including personally identifiable information (PII) such as credit card numbers. It provides visibility into the data security and data privacy of your data stored in Amazon S3, helping to identify and classify PII in various formats and locations within your S3 buckets. This allows the company to gain insights into their data, identify potential risks or compliance violations, and take appropriate actions to protect sensitive information and maintain data privacy.