Answer: Someone would be able to access your files on the laptop by using the administrator account of the OS to take ownership of the files.
The answer is B.
Step-by-step explanation:
When purchasing a new or even used laptop or desktop computer, you need to change the password on the admin account and encrypt it ASAP. Always make sure your anti-virus is up-to-date and make sure the firewall is turned on.
Microsoft offers a safety scanner that is free of charge, always run it once per day to keep your system free of issues. This works in conjunction with any existing anti-virus you may have on the computer.