What is the main reason for using a pilot project to introduce a testing tool...

The main reason for using a pilot project to introduce a testing tool into an organization is C. To assess whether the tool will be cost-effective. A pilot project is a small-scale trial or experiment that is used to evaluate the feasibility, benefits, risks, and challenges of introducing a testing tool into an organization. A pilot project can help to assess whether the tool will be cost-effective, by comparing the costs of acquiring, deploying, using, and maintaining the tool with the benefits of using the tool, such as increased efficiency, effectiveness, quality, etc. A pilot project can also help to identify any technical, organizational, or human factors that may affect the successful adoption of the tool, and plan for any necessary actions or changes to address them. A detailed explanation of pilot projects can be found in A Study Guide to the ISTQB® Foundation Level 2018 Syllabus, pages 115-1161.