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Your customer has a Google App Engine application that was recently updated. Some users are now reporting that the application takes approximately 30 seconds to load, an issue that was not present before the update. What strategy should you take to address this performance issue?
A
Work with your ISP to diagnose the problem
B
Open a support ticket to ask for network capture and flow data to diagnose the problem, then roll back your application
C
Roll back to an earlier known good release initially, then use Stackdriver Trace and Logging to diagnose the problem in a development/test/staging environment
D
Roll back to an earlier known good release, then push the release again at a quieter period to investigate. Then use Stackdriver Trace and Logging to diagnose the problem