Difficulty: Medium
Correct Answer: A
Explanation:
Introduction / Context:Consecutive placement (D-A-B) anchors the middle of the sequence; remaining inequalities fix everyone else relative to that block.
Given Data / Assumptions:
Concept / Approach:Since V must be left of D, and T left of V, the left flank becomes T, V, D. With D-A-B consecutive and Q, S to the right of A (and B also to A’s right), a consistent sequence emerges.
Step-by-Step Solution:
One valid linearization is: T < V < D < A < B < Q < S.The middle (4th) position is A.Verification / Alternative check:Any attempt to move Q to the left of A violates A < Q; moving V to the right of D violates V < D.
Why Other Options Are Wrong:V and D are left of the center; Q is right of it.
Final Answer:A
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