To meet GDPR for European personal data (delete after 36 months) stored in Cloud Storage and BigQuery, what should you implement?

The correct answer addresses both BigQuery and Cloud Storage requirements for data deletion after 36 months. For BigQuery, using a time-partitioned table with partition expiration set to 36 months ensures that data older than this period is automatically deleted, aligning with GDPR. For Cloud Storage, enabling a lifecycle DELETE action with Age=36 months is the standard and most efficient way to automatically remove objects after a specified duration. The incorrect options propose less effective or incorrect methods. Setting BigQuery table retention to 36 months (instead of partition expiration) would delete the entire table, not just old data within it. Using gsutil to SetStorageClass to NONE is not a valid or functional command for data deletion in Cloud Storage; lifecycle management policies are the correct approach.