Which of the following is true?
(a) The aggregation association represents the part-whole relation between the instances of the associated classes
(b) In a composition association, each part can be related to only a single whole at one time
(c) An association class represents a relation on the sets of instances of the classes it connects, and it also holds data and behavior the pertinent to the relation
(d) All of the mentioned
The question was asked during an interview.
My doubt is from Advanced UML Class Diagrams in division Unified Modelling Language of Software Architecture