Which Salesforce API should an Integration Architect use to meet the requirement?

Northern Trail Outfitters uses a custom Java application to display code coverage and test results for all of their enterprise applications and is planning to include Salesforce as well.

Which Salesforce API should an Integration Architect use to meet the requirement?
A . SOAP API
B. Analytics REST API
C. Metadata API
D. Tooling API

Answer: D

Explanation:

https://developer.salesforce.com/docs/atlas.en-us.api_tooling.meta/api_tooling/tooling_api_objects_apexcodecoverage.htm