In a UML Use Case Diagram, what do associations represent?Mark(Choose all possible options)Flow of control Relationships between instances Inheritance Object interactions

What does the UML Use Case Diagram depict?Mark(Choose all possible options)Control flow within the systemUser actions and system responsesClass hierarchies and relationshipsSystem components and their interactions

In a UML Use Case Diagram, what does an <<extend>> relationship signify?Mark(Choose all possible options)Optional additional behavior in a Use Case Inheritance between Use CasesA mandatory relationship between actorsA bidirectional association between actors and Use Cases

What is the relationship between a use case and an actor in a use case diagram?a.Dependencyb.Associationc.Aggregationd.Inheritance

What is the purpose of the "Association" relationship between two use cases in a use case diagram?a.To illustrate a communication link between two use casesb.To indicate a dependency between the use casesc.To model the relationships between classesd.To show that one use case is an extension of another

What is the purpose of a use case diagram in UML?To represent the dynamic behavior of a systemTo show the interactions between objects over timeTo describe the functional requirements of a systemTo depict the physical components of a system