Question: What does the `presentationAllowedAddress` identifier primarily refer to in the context of supplementary services for mobile radio interface layer 3?
Option 1: The restriction on presenting the calling party's name identity to the called party.
Option 2: The line identity of the other remote party that is allowed to be presented.
Option 3: The network's capability to restrict presentation of caller ID for all incoming calls.
Option 4: The type of supplementary service activated on the called party's line.
Explanation: This question requires understanding of telecom supplementary services, specifically how caller/called party information is managed. The correct answer, `presentationAllowedAddress`, permits displaying a specific remote party's line identity, highlighting identity presentation control in telecommunications. Option 2 is correct as it aligns with the definition provided for `presentationAllowedAddress`. The other options are incorrect: Option 1 confuses it with `presentationRestricted`, Option 3 introduces unrelated network capabilities, and Option 4 misinterprets supplementary services' scope.