In which of these expression ‘X ≤ B’ is definitely true?

A < B ≥ C ≥ V < W> X ≥ Y > Z                         No relationship can be established between X and B. Hence option 1 is not correct. W > X > F = A ≥ R = S > B = Y                         X > B. Hence option 2 is not correct. F ≤ X > S > A ≥ Z ≤ R = B < C                           No relationship can be established between X and B. Hence option 3 is not correct. C > X = D ≤ I = B ≤ V = U = T                          X ≤ B. Hence option 4 is correct. R > S ≤ X > F ≥ V < U > B < H                         No relationship can be established between X and B. Hence option 5 is not correct.