Which two statements are true about unbounded task flows?

Which two statements are true about unbounded task flows? (Choose two.)

A.
They must have a defined entry point.

B.
They must have a defined exit point.

C.
They may pass parameters to bounded task flows.

D.
They can use method calls but not routers to control navigation.

E.
Parameters cannot be passed to an unbounded task flow.

Explanation:
Incorrect Answers:
A, B: An unbounded task flow does not have a single point of entry. Bounded task flow is a specialized form of
task flow that, in contrast to an unbounded task flow, has a single entry point and zero or more exit points.
E: An unbounded task flow cannot declaratively specify parameters.
http://docs.oracle.com/cd/E23943_01/web.1111/b31974/taskflows.htm#ADFFD1633