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

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

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

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

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

Explanation: 1, 5, 7 have two similar elements, one inside the other. 2, 4, 8 have one element placed inside a different element. 3, 6, 9 have two similar elements, one inside the other and the area between the two elements is shaded.