Which explanation is correct?

After loading data to Einstein Discovery and creating a story, the client asks the Einstein Consultant to explain the "Unexplained Bar" in the "Why it Happened" chart.

Which explanation is correct?
A . It should always be 0 or the model should not be used.
B. It shows the difference between the predicted outcome and the observed outcome.
C. It displays the difference between the analyzed data and the data not reviewed.
D. It only appears for outcomes that do not have an explanation.

Answer: B