Which of the Following Statements About Multiple Streams Problem Identification

Which of the following statements about Multiple Streams problem identification and potential solutions is/are correct?

A) The problem in Multiple Streams is usually ambiguous
B) Throughout the initial process the problem is defined and redefined
C) The potential solutions in Multiple Streams are clear and apolitical
D) The potential solutions in Multiple Streams are debated within the affected communities and public literature and take on a political tone
E) Once a policy solution is defined, the debate ceases