If we are given four points, it can be the case that the points are found in the same line or called collinear lying on the same axis. However, it is not a guarantee that those points are also coplanar. Yes, four points can create a plane but not at all time they are also collinear.
There are 4 dots in categories 0 and 1; 9 dots in categories 2 and 3; and 2 dots in categories 4 and 5. The histogram with bar lengths 4, 9, and 2 is the appropriate choice.
