Correct option is D
Statement: M < N ≤ O = S > T ≥ W ≥ Z
Conclusions:
I. M ≤ T - False - M < N ≤ O = S > T, there is two reverse symbols present in between them.
II. N < Z - False - N ≤ O = S > T ≥ W ≥ Z - there is two reverse symbols present in between them
Neither Conclusion I nor Conclusion II is true
hence option d is correct.