A.parameter node

B.final node

C.both

D.one or both

E.exactly one

A.order message arguments differently from the order of the corresponding parameters

B.order the events within a lifeline more flexibly than merely downwards

C.order any two events within one interaction

D.order interactions in hierarchies of inheritance

A.a call

B.an operation

C.an event type

D.a trigger

E.an event

A.namespace whose members can include features

B.namespace whose members cannot include features

C.can be part of a generalization hierarchy

D.cannot be part a generalization hierarchy

E.describes a set of instances that have features in common

F.describes a set of instances that have no features in common

A.There are two size properties that have no name conflict as long as each size is private.

B.Only one or the other should be used, not both, in order to avoid a name conflict.

C.The size end name on the association indicates data storage and the attribute does not.

D.The size attribute in the class indicates that it will be stored within the class and the end name does not.

E.There is one size property diagrammed both as an attribute and as an association end.