Drilling and incinerating are physical destruction methods that make the data on hard drives unrecoverable.
Standard formatting, erasing and low-level formatting are logical methods that can be reversed with data recovery tools. Recycling is not a destruction method at all. Verified References:
https://www.comptia.org/blog/what-is-a-certificate-of-destruction https://www.comptia.org/certifications/a

Explanation
Disk encryption should be used to secure the workstation in case of theft. Disk encryption can help to protect data on the hard drive by encrypting it so that it cannot be accessed without the correct encryption key.

Private-browsing mode is the best option to mitigate the risk of customer data being accidentally saved to the kiosk. Private-browsing mode prevents the browser from storing cookies, history, passwords, and other data that could reveal the customer's identity or preferences. Manually clearing browsing data is not a reliable option, as it depends on the customer's awareness and willingness to do so. Browser data synchronization and password manager are features that could actually increase the risk of customer data being exposed, as they could sync or autofill sensitive information across devices or accounts. Reference:
Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 12 Certification Study Guides and Books | CompTIA IT Certifications, CompTIA A+ Core 1 220-1101 Certification Study Guide, page 234

Explanation
Group Policy is a feature of Windows that allows administrators to centrally manage and apply policies and settings to computers and users on a domain. Group Policy can be used to create user profiles that include home directories and network printers for several new users, as well as other configurations such as security settings, desktop preferences, and software installation. Group Policy can save time and effort for the administrator by applying the same settings to multiple users at once. Access control, authentication application, and folder redirection are not the most efficient ways to create user profiles that include home directories and network printers for several new users.