A) \[\begin{matrix} 1 & 7 & 8\\ 2 & 6 & 5\\ 3 & 4 & 9\\ \end{matrix}\]
B) \[\begin{matrix} 1 & 8 & 9\\ 2 & 3 & 5\\ 4 & 6 & 7\\ \end{matrix}\]
C) \[\begin{matrix} 2 & 3 & 5\\ 1 & 7 & 8\\ 4 & 6 & 9\\ \end{matrix}\]
D) \[\begin{matrix} 2 & 6 & 7\\ 1 & 3 & 4\\ 5 & 8 & 9\\ \end{matrix}\]
Correct Answer: B
Solution :
Figure 2, 3 and 5 are one pointed structure. Figures 1, 8 and 9 are two pointed structure. Figures 4, 6 and 7 are three pointed structure.
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