The important part of the question is that all citizens are required to vote (we can understand: in person), as opposed to only some citizens voting (this is the case when the congress votes: only some people vote on laws, and they represent the wider community).
This situation when all people vote personally and are not represented is called a) direct democracy.
The main purpose of the League of Nations was to ensure World Peace and to prevent another World War. Their methods were promoting disarmament (reducing the number of weapons) diplomacy, international relations and global well-being.
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Some of the factors were money, power and their leaders were very powerful.
<em>The United States Senate's and the House of Representatives'</em> chambers are part of a bicameral federal legislature. The Senate is the upper chamber of the United States Congress, and the House of the Representatives is the lower chamber. Together they comprise the legislature of the United States.
Answer is C.