Among multiparty democracies, those with the fewest parties will have the most-productive legislatures. The fewer the number of parties in a democracy, the more issues each must take a stand on. A political party that must take stands on a those issues; this promotes a tendency to compromise.
What this question is testing
Your task
Find the assumption the argument requires in order for its conclusion to hold.
Common trap
Answers that would help the argument but aren't strictly required (sufficient, not necessary).
Winning move
Negate each choice — the right one breaks the argument when negated.
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