Which AWS service or tool can the company use to meet these requirements?

Explanations:

AWS Budgets allows users to set custom cost and usage budgets but does not provide estimates for new services or instances. It is primarily a monitoring tool to alert users when they exceed budget thresholds.

AWS Pricing Calculator is specifically designed to estimate AWS costs based on selected services and configurations. It allows users to input their expected usage and provides a detailed breakdown of expected monthly costs for new instances and services.

AWS Trusted Advisor provides real-time guidance to help users provision their resources following AWS best practices but does not estimate costs. Its focus is on optimization, security, and performance rather than cost estimation.

AWS Marketplace is an online store where users can find, buy, and sell software and services that run on AWS. It does not provide cost estimation tools but rather hosts third-party applications and services.