(d) It does not allow room to correct mistakes.
Democracy allows room to correct mistakes — this is one of its key features. Hence, option (d) is not true about democratic government.
Source: How do we assess democracy's outcomes?, Chapter 5
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The passage clearly lists "Allows room to correct mistakes" as a feature of democracy. Options (a), (b), and (c) are all stated as true features in the chapter. For MCQs, always check the exact wording against what the textbook states.