When creating labels using Oracle Label Security, which is required?

An Oracle Label Security (OLS) label is composed of three components: a level, zero or more compartments, and zero or more groups. Among these, only the level is mandatory. The level indicates the sensitivity of the data (e.g., PUBLIC, CONFIDENTIAL, SECRET). Compartments and groups are optional and are used to provide more granular access control by representing areas or projects to which the data belongs. Therefore, when creating any label, a level must always be specified.

A. level and group: The group component is optional, not required.
B. level, compartment, and group: Both compartment and group components are optional.
C. compartment: The compartment component is optional.
D. group: The group component is optional.
F. compartment and group: Both compartment and group components are optional.
G. level and compartment: The compartment component is optional.

1. Oracle Database Vault and Oracle Label Security Guide, 21c. Chapter 8, "Defining Oracle Label Security Policies and Labels". Section: "Components of an Oracle Label Security Label". It states, "A label has three components: A single level... Zero or more compartments... Zero or more groups."