Final answer:
Guest access is the tier of authorization that provides the lowest level of access compared to User and Administrator access.
Explanation:
Guest access provides the lowest level of access in terms of authorization. It usually offers limited permissions and restrictions compared to other tiers.
For instance, a guest user on a computer system may only have access to basic features and functionalities, with restricted capabilities like not being able to install new software.
On the other hand, Administrator access typically grants the highest level of privileges, allowing full control over the system or application.
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