What statements are true about a composite structure? (Choose two.)

What statements are true about a composite structure? (Choose two.)
A . Destroying an instance of a structured classifier normally destroys instances of its parts.
B . Structured classifiers cannot contain instances of structured classifiers.
C . The behavior of a structured classifier must be completely defined through the collaboration of owned or referenced instances.
D . Collaborations are structured classifier.
E . A structured classifier is also an encapsulated classifier.

Answer: AD