In a UML Class diagram, aggregation represents O "is a" or "is a kind of relationship between objects O a strong form of coupling which is generally undesirable O an object or instance of a class O "is part of" or "contains" relationship between two classes or components QUESTION 17 In a UML Class Diagram, the multiplicity of a class with respect to an association is an assertion on the number of instances of the class that may relate to each combination of one or more instances of each of the other classes in the association. O True False