Your question is Customer Acquisition Metrics Lifecycle. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Lifecycle and cost of customer acquisition
Define the customer acquisition lifecycle from first exposure through conversion and early retention. Explain how you would calculate and decompose customer acquisition cost, compare channels and cohorts, and determine whether acquisition spend is economically sustainable. State the data you would request, assumptions you would validate, and actions you would recommend if CAC rises while acquisition volume continues to grow.