Your Company Wants to Understand Where Cost Is Coming from in the Company's

Multiple Choice

Your company wants to understand where cost is coming from in the company's production AWS account. There are a number of applications and services running at any given time. Without expending too much initial development time, how best can you give the business a good understanding of which applications cost the most per month to operate?

A) Create an automation script which periodically creates AWS Support tickets requesting detailed intra-month information about your bill.
B) Use custom CloudWatch Metrics in your system, and put a metric data point whenever cost is incurred.
C) Use AWS Cost Allocation Tagging for all resources which support it. Use the Cost Explorer to analyze costs throughout the month.
D) Use the AWS Price API and constantly running resource inventory scripts to calculate total price based on multiplication of consumed resources over time.