Step 1: Each figure is a square-like shape with four curved bites and four flat ends. The longest flat edge is at the bottom in figure 1, it slopes down to the right (about 30 degrees) in figure 2 and is steeper (about 60 degrees) in figure 3. So the shape turns clockwise by about 30 degrees at each step. Step 2: The fourth figure is therefore figure 1 turned clockwise by 90 degrees. Step 3: After a 90 degree clockwise turn the long flat edge from the bottom comes to the left side and is vertical, the short flat end from the top goes to the right side, the medium flat end from the right goes to the bottom, and the short flat end from the left goes to the top. Step 4: Option 3 shows exactly this: a long vertical edge on the left, a short projecting end on the right, a medium flat end at the bottom and a short flat end at the top with gentle curved bites between them. Step 5: Option 1 has a deep round bay at the upper right which does not exist in the original shape, option 2 has curved edges on the left instead of the long flat edge, and option 4 has a deep semicircular bite at the top left, so none of them is the rotated original. Answer: (3) the figure shown in option 3
