What should they do?

HipLocal’s APIs are showing occasional failures, but they cannot find a pattern. They want to collect some metrics to help them troubleshoot.

What should they do?
A . Take frequent snapshots of all of the VMs.
B . Install the Stackdriver Logging agent on the VMs.
C . Install the Stackdriver Monitoring agent on the VMs.
D . Use Stackdriver Trace to look for performance bottlenecks.

Answer: C