Which approach should you use?

Your organization requires that metrics from all applications be retained for 5 years for future analysis in possible legal proceedings .

Which approach should you use?
A . Grant the security team access to the logs in each Project.
B . Configure Stackdriver Monitoring for all Projects, and export to BigQuery.
C . Configure Stackdriver Monitoring for all Projects with the default retention policies.
D . Configure Stackdriver Monitoring for all Projects, and export to Google Cloud Storage.

Answer: D

Explanation:

Overview of storage classes, price, and use cases https://cloud.google.com/storage/docs/storage-classes

Why export logs? https://cloud.google.com/logging/docs/export/

StackDriver Quotas and Limits for Monitoring https://cloud.google.com/monitoring/quotas

The BigQuery pricing. https://cloud.google.com/bigquery/pricing