Answer: AWS TCO calculator

The AWS TCO (Total Cost of Ownership) Calculator is specifically designed to help organizations compare the cost of running applications in on-premises or colocation environments versus AWS. It allows users to describe their current infrastructure configuration and produces a detailed cost comparison with AWS services, making it ideal for cost-benefit analysis during cloud migration planning. **Why other options are incorrect:** - **AWS Config**: A service for assessing, auditing, and evaluating AWS resource configurations - **AWS Cost Explorer**: Used for analyzing AWS spending patterns and forecasting costs after migration - **AWS Consolidated Billing**: A billing management feature for AWS Organizations, not for migration cost analysis

Author: Ritesh Yadav