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A ≤ B = C ≤ D ≤ E               A ≤ D is true. Hence option 1 is incorrect. B > F = D ≥ G ≥ A              A ≤ D is true. Hence option 2 is incorrect. C < D = E ≥ F = A               A ≤ D is true. Hence option 3 is incorrect. D < B ≥ E = O ≥ A              A ≤ D is false. Hence option 4 is correct. A ≤ E = B ≤ D < F               A ≤ D is true. Hence option 5 is incorrect.
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