A constitutional government by definition is a

1. A constitutional government is one whose powers are defined and circumscribed by a constitution, which acts as the supreme law. 2. The core idea of constitutionalism is the limitation of government power to protect individual rights and prevent arbitrary rule. 3. Therefore, by definition, a constitutional government is fundamentally a limited government – its powers are not absolute but are constrained by constitutional provisions. 4. Option (A) is incorrect; while a legislature is part of many constitutional governments, government by legislature alone (parliamentary supremacy without constitutional limits) doesn't define it. 5. Option (B) is incorrect; while many constitutional governments are popular (democratic), a government could theoretically be constitutional without being fully democratic, and vice versa. 6. Option (C) is incorrect; the number of parties (multi-party or otherwise) is a feature of the political system, not the defining characteristic of a constitutional government.