Sales by Region 600000 500000 400000 300000 200000 100000 0 QTR 1 QTR 2 QTR 3 QTR 4 Region 1 Region 2 Region 3 A Stacked Area chart is good for showing relative contributions of different series to a total over time, but they have one big limitation, which is? They can only show four points in time One series can be hidden behind another series They can only include 3 series They cannot show negative values They tend to lack color and not draw the eye