The plots below show three continuous variables. The line x = 2 appears to separate the points. But it is actually not the case, which we can see by plotting the data in a couple of two dimensional...

The plots below show three continuous variables.

The line x = 2 appears to separate the points. But it is actually not the case, which we can see by plotting the data in a couple of two dimensional points.

Why is this happening?

A. Humans are not good at reading pseudo-3D plots.

B. There must be an error in the code.

C. The colors confuse us.

D. Scatterplots should not be used to compare two variables when we have access to 3.