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Match search specs: 1. Sorted: p. Needed 2. Halve: q. Drop half 3. Empty: r. Not found

A1-p, 2-q, 3-r
B1-p, 2-r, 3-q
C1-q, 2-p, 3-r
D1-r, 2-p, 3-q
Answer & Solution
Correct answer: A. 1-p, 2-q, 3-r
Binary search requires sorted data, discards half of the search interval each step, and terminates if the subarray becomes empty.
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