The orange cell moves as if reading the board (left to right, then on to the next row) and the blue circle moves down the columns (top to bottom, then on to the next column). Each jumps a fixed number of cells. Which board comes next?

In reading order the orange cell jumps 3 cells each time: first cell, fourth cell, then on to the second row, and so on; 3 more cells takes it to the start of the bottom row. Going down the columns the blue circle jumps 2 cells each time; 2 more cells takes it from the third row of the third column to the top of the last column. So the orange cell is bottom-left and the circle top-right: (c). (a) swaps them, (b) moves the circle 3 cells and (d) moves the orange cell only 2.