You are the administrator of the ACME banking group. You are responsible for reporting on the costs of each subscription every month. You notice that last month you have an unusually high bill for one of the subscriptions called "Production" with tags called "ProdMoney". You need to delve deeper to find a breakdown of costs per tag to see what resource was the most expensive. Under which tab will you find the additional information?
Cost analysis is the only option that allows you to filter by tags. Invoices show a breakdown of costs but not by tags. Events are not cost-related, it is where you can configure reactive apps.