Final answer:
A country practicing the principle of one man, one vote is engaged in a democratic form of government, where each citizen has an equal vote and officials are elected based on majority rule.
Step-by-step explanation:
A country abiding by the principle of one man, one vote is practicing democracy. This principle is fundamental to democratic systems, where each citizen's vote has equal value and the majority rule is respected. In a democracy, people vote to elect officials, a constitution typically outlines the foundational ideas of how the government should operate, and one goal of this type of government is to protect citizens' basic rights. In contrast, a monarchy is a system of government where a single ruler, often hereditary, holds power. An oligarchy is a system where a small group of elite people hold political power, and in a totalitarian system, the government controls all aspects of citizens' lives and limits their rights.