Welcome to your interview.
The question is on your right: Account Health Metrics and Expansion. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
What metrics do you track to determine the health of an Optimizely account, and how do you use those metrics to drive expansion?