Answer:Unstructured decisions
Explanation:Unstructured decisions: These are decision that have no structure in terms of how you go about in making a decision , they only need you to make judgement , evaluate the situation and engage your own insight in terms of term of how you can resolve the issue.
They don't come in the same form so you deal with something new that you haven't encountered before and where there are no predetermined structures or set of ordered responses.
If I recall correctly from my World History days, then it is D.
Not sure but black are bad so i would say b or d