A business analyst (BA) is working on a payment system (PS) implementation. A set of systems which should interact with a new system has been identified. The business analyst defined that a user…

An <<include>> relationship signifies that the base use case unconditionally delegates part of its behavior to another use case during execution. Because the requirement mandates two-factor authentication as a prerequisite to 'Change system parameters', the base use case always includes the authentication flow - there is no scenario where parameters can change without it. Option A correctly shows the <<include>> arrow pointing from 'Change system parameters' to 'Pass two-factor authentication', reflecting this enforced behavioral dependency.

This option likely depicts an <<extend>> relationship, which is reserved for optional or condition-triggered additions to a base use case, but authentication here is mandatory and unconditional.

This option likely shows an incorrect arrow direction or stereotype, reversing the dependency or using a relationship type that does not represent mandatory inclusion.

This option likely depicts generalization or a plain association, neither of which correctly models the required invocation of authentication within the parameter-change use case.