Information Systems Guidelines Are a Set of Statements Specifying How

Information Systems Guidelines are a set of statements specifying how the firm should use its technical and organizational IS resources to achieve the IS vision. What is (are) the purposes(s) of these guidelines?

A) To simplify tactical and operational decision-making
B) To ensure that future decisions are aligned with the information systems vision
C) To set expectations for behavior
D) To guide future decision making
E) All of the above