In the following question, in each option a pair of figures is given. In each pair the figure towards the left of (:) is related by some logic/rule/relation with the figure on the right of (:). Select the odd figure pair from the given alternatives.
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Correct answer: A
Explanation

तर्क: भुजाओं की संख्या - 1 = रेखाओं की संख्या