Visual IQ puzzle (MENSA Denmark, difficulty 3)
Correct answer: B
Explanation: This is a scaling and rotation puzzle. Consider each colum. The figure at the bottom of each column is obtained by applying a scaling and/or a rotation to the top figure. The figure in the middle specifies the operation. A '+' sign indicates a scaling operation, the rotated '/' symbol indicates a rotation and the rotated '+' indicates a scaling and a rotation.