When creating a use case diagram which of the following relationships may a business analyst...

In use case diagrams, the relationships between use cases may include “include” and “extend.”

Include indicates that a use case incorporates another use case as part of its behavior.

Extend shows optional behavior that extends the base use case under certain conditions.

These relationships help modularize functionality and clarify dependencies.

BABOK® Reference – Technique: Use Cases and Scenarios (Section 10.49):

“Use cases can have relationships such as include or extend to indicate reuse or conditional behavior extensions.”