You want to view the memory usage of your application deployed on Compute Engine. What should you do? 

Answer options:

A. Install the Stackdriver Client Library.
B. Install the Stackdriver Monitoring Agent.
C. Use the Stackdriver Metrics Explorer.
D. Use the Google Cloud Platform Console.

C

Reference: https://stackoverflow.com/questions/43991246/google-cloud-platform-how-to-monitor-memory-usage-of-vm-instances