Which type of account has the least access in settings and features?

The account type that has the least access in settings and features is the Sharing Only account. This type of account is primarily designed for users who need to access shared resources or items on a Mac without requiring full user privileges. Sharing Only accounts do not have a home folder, which means they are not able to log into the system in the same way other accounts do and have very limited access to system settings and features.

In contrast, Administrator accounts have full access to all settings and features, allowing users to modify system configurations and manage other user accounts. Standard accounts have a wider range of permissions than Sharing Only accounts but still don't have the same level of control as Administrator accounts. Managed with Parental Controls accounts, while restricted, allow parents or guardians to set limits on what features and services children or other users can access, but they still have a level of interaction with the system beyond what a Sharing Only account provides.

Therefore, the Sharing Only account's minimal level of access makes it the correct choice when determining which account type has the least access to settings and features.