Concept:Count the number of vertices and sides in each figure. The odd one has a mismatch between vertices and sides.Explanation:Option A: 5 vertices and 5 sides – they match.Option B: 5 vertices but 10 sides – they do not match.Option C: 6 vertices and 6 sides – they match.Option D: 6 vertices and 6 sides – they match.Only Option B has unequal numbers.
