The Unified Modeling Language (UML) has become an effective standard for software modelling.How many different notations does it have ?

The Unified Modeling Language (UML) has become an effective standard for software modelling.How many different notations does it have ?

A. Three
B. Four
C. Six
D. Nine

Explanation: The different notations of UML includes the nine UML diagrams namely class, object, sequence, collaboration, activity, state-chart, component, deployment and use case diagrams.