The correct answer is Option (1) → 

In the top row the second figure is the first one given half a turn (180°): the triangle that points down now points up, and the shaded part moves from the top to the bottom. Giving the first figure of the bottom row the same half turn, the triangle that points right must point left, with the shaded part moving from the left side to the right side. The columns confirm it: down the first column the figure makes a quarter turn anticlockwise (the down-pointing triangle with its shading at the top becomes a right-pointing one with its shading on the left), and the same quarter turn of the top-right figure gives the left-pointing triangle with its shading on the right.