In a series of figures is given which can be grouped into classes: Select the groups into which the figures can be classifled?

Options

A. A. (1, 4, 7) ( 2, 6, 9) (3, 5, 8)
B. B. (1, 7, 8) ( 2, 5, 9) ( 3, 4, 6)
C. C. (1, 4, 8) ( 2, 6, 9) ( 3,5, 7)
D. D. (1, 4, 8) ( 2, 6, 5) (3, 7, 9)

Answer

C

Explanation

Figures (1), (4) and (8) `rarr` Each figure consists of four straight lines.
Figures (2), (6) and (9) `rarr` Each figure consists of curved line and straight lines.
Figures (3). (5) and (7) `rarr` Each figure consists of six straight lines.