Grouping of Images - Verbal and Reasoning

Directions to SolveIn each of the following questions, group the given figures into three classes using each figure only once.
Q1:

Group the given figures into three classes using each figure only once.

A 2,4,7 ; 1,6,9 ; 3,5,8

B 1,3,5 ; 2,6,7 ; 4,8,9

C 1,5,7 ; 2,3,6 ; 4,8,9

D 1,3,5 ; 2,4,7 ; 6,8,9

ANS:A - 2,4,7 ; 1,6,9 ; 3,5,8

Explanation: 1, 6, 9 are figures which are half shaded by slanting lines. 2, 4, 7 are all divided into equal parts (either three or four parts) by straight lines and also have a black circle at the centre. 3, 5, 8 have similar designs and have their four corners shaded black.