<P> Example: Library and Students . Here the student can exist without library, the relation between student and library is aggregation . </P> <P> The UML representation of a composition relationship shows composition as a filled diamond shape on the containing class end of the lines that connect contained class (es) to the containing class . </P> <Dl> <Dt> Composition relationship </Dt> <Dd> 1 . When attempting to represent real - world whole - part relationships, e.g. an engine is a part of a car . </Dd> <Dd> 2 . When the container is destroyed, the contents are also destroyed, e.g. a university and its departments . </Dd> </Dl> <Dd> 1 . When attempting to represent real - world whole - part relationships, e.g. an engine is a part of a car . </Dd>

Which of the following uml class diagrams depicts an aggregation relationship