There are ovals with 3 different thicknesses, each row (horizontal) contains an oval with the three different thicknesses. In addition, each row contains two ovals with the top pointing up left and 1 oval with the top pointing up right.
In addition, the number of gray blocks increases by two from top to bottom.
The answer contains an oval of the thinnest thickness, with the top pointing up to the right, and two gray blocks.