Concept:Use a grid of 2 rows (North and South) and 3 columns, and place occupants based on given conditions.
Explanation:North row: Q, T, S (from conditions 1, 2, 4).
South row: R (given), U (from condition 2), and P (the only remaining).
Condition 2: S and U are diagonally opposite, so S is at one corner (col1 or col3) and U at the opposite corner in the other row.
Condition 3: R is next to U in the South row.
Condition 1: Q is not next to S in the North row.
Case 1: S at N1 → U at S3 → R at S2 → P at S1. North: S(N1), T(N2), Q(N3) (since Q cannot be at N2). Q and S are separated by T at N2.
Case 2: S at N3 → U at S1 → R at S2 → P at S3. North: Q(N1), T(N2), S(N3). Again T lies between Q and S.
Thus, T is between Q and S.
Answer:B. T