Correct option is A
From chain:
P > Q ≥ R < S = T > U
Thus T > U and P > Q ≥ R, but no fixed relation between P and U.
So U < P is not definite → False.
From statement Q ≥ R
Q may be equal to R or greater than R.
Thus Q > R not definite → False.
If statement has ≥ or ≤, strict relation (> or <) cannot be निश्चित.
Neither conclusion follows.
(A)