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Match operations: 1. Concat: p. Join 2. Rev: q. Invert 3. Len: r. Char count

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
Common string routines concatenate separate strings together, reverse character sequences, and report string lengths.
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