For an independent contractor, GitHub Copilot Individual is the most suitable and cost-effective plan.
Reference: GitHub Copilot pricing documentation.

Audit log events for GitHub Copilot Business can be accessed through the Audit log section within the organization ' s GitHub settings. This log provides a record of activities related to Copilot usage and configuration.
Reference: GitHub Copilot Business documentation on audit logs.

"If excluded content is referenced by non-excluded code, such as through function calls, Copilot may still use that reference context." This confirms that excluded content can indirectly appear if referenced elsewhere.
References: GitHub Copilot content exclusions limitations documentation.

"Content exclusions can only be configured at the enterprise level by an enterprise administrator. Repository or organization admins cannot configure them directly." This confirms that configuration is limited to enterprise administrators, making option C correct.
References: GitHub Copilot content exclusions configuration documentation.

GitHub Copilot primarily impacts the software development process by increasing productivity through automating repetitive coding tasks.
Reference: GitHub Copilot impact documentation.