You want to find out when users were added to Cloud Spanner Identity Access Management (IAM) roles on your Google Cloud Platform (GCP) project. What should you do in the GCP Console? 

Answer options:

A. Open the Cloud Spanner console to review configurations.
B. Open the IAM & admin console to review IAM policies for Cloud Spanner roles.
C. Go to the Stackdriver Monitoring console and review information for Cloud Spanner.
D. Go to the Stackdriver Logging console, review admin activity logs, and filter them for Cloud Spanner IAM roles.

B