Refer to the Exhibit.
Which two are true? (Choose two.)
A.
Every Flurb is associated with exactly one Flurb.
B.
There can only be one instance of the Flurb class.
C.
Every Flurb contains a reference to itself.
D.
There must always be an even number of Flurb instances.
E.
A Flurb can be associated with itself, but it also could be associated with a different Flurb.