Which concept in OOP explains the relationship between the classes Nation and President, where the class Nation has-a (an) object of class President? A.
aggregation
B.
association
C.
abstraction
D.
composition
E.
inheritance

Other - a written response, no less than arial 12-point font, to the following: of the following, which would you consider is most important to customer service goals? choose one and explain why. (1) accuracy (2) punctuality and attendance (3) courtesy (4) productivity (5) organization