For acceptable order questions, go through the rules and use them to eliminate answers one by one.
Note that I use the rules themselves. I don’t use my diagrams for these questions. Reading the rules again for this question will help you memorize the rules, and it’s also more efficient.
Rule 1 eliminates A. The guitarist can’t be fourth.
Rule 2 eliminates D and E. The percussionist has to be before the keyboard player.
Rule 3 eliminates no answers.
Rule 4 eliminates B. The saxophonist has to be between the trumpeter and the percussionist.
C is CORRECT. It violates no rules.
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