Final answer:
The option that exemplifies the least privilege principle on a home PC is 'Create a standard user account for kids' as it restricts their access to essential applications and data, safeguarding sensitive information and system settings.
Step-by-step explanation:
The principle of least privilege dictates that users should be granted the minimum levels of access — or permissions — necessary to perform their job functions. In the context of a home PC, the example that best exemplifies the least privilege principle is B. Create a standard user account for kids.
This setup ensures that children have access only to the applications and data they need while preventing them from making significant changes to the system settings or accessing sensitive information, thus helping to protect your credit and debit cards and protect your wallet. Installing antispyware and using anti-virus software are examples of protective measures but do not directly relate to the principle of least privilege. Similarly, storing financial data in a separate folder aids in organization and could add a layer of protection but does not inherently restrict user privileges. Disabling the firewall for online gaming is contrary to security best practices and does not align with the least privilege principle.