Which icon verifies the project and tests for errors in the build?

The icon that verifies the project and tests for errors in the build is accurately identified as "Verify." This function is essential in ensuring that all elements of a project are correctly set up and that there are no inconsistencies or mistakes before proceeding further. When you select the Verify function, it systematically checks the project for issues that could affect performance or lead to errors during operation. This makes it a vital tool for maintaining the integrity of your project, as it allows you to catch potential problems early in the development process.

The other options focus on different functionalities. Adjustment generally refers to modifying parameters within the project rather than validation, Confirm suggests finalizing a choice without necessarily ensuring the correctness of the project setup, and Test implies executing the project or components to see if they work as intended, rather than verifying correctness before execution. Therefore, "Verify" is the dedicated function that checks for errors and ensures everything is in order, making it the correct answer.