Answer:
B. This caused a decisive split in national elections.
Explanation:
All of the three caused a split in national elections. Roosevelt is the only one who made it to the president of the United States. In the 1912 election, his participation made a split and allowed the victory of the Democratic nominee Woodrow Wilson.
Ralph Nader is an American activist, attorney, and author who is recognized for his involvement in consumer protection. He ran for president on several occasions as a third party candidate. His participation in the 2000 election was controversial because it is said that he split the votes directed to Al Gore and allowed the victory of Geroge W. Bush.
Finally but not least, Ross Perot was an American business magnate who ran for president in two elections as an independent candidate. His both campaigns are among the strongest presidential showing of an independent candidate in history. In the 1992 election, he compete head to head with the Democrat and Republican candidates, George Bush and Bill Clinton.
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Here is the structure of US Constitution
1. Separation of Powers: Executive power, legislative power and judicial powers are the 3 branches of the US Federal Government.
2. Separation of Federal and State Power: The US constitution divides the governmental power between National and State government and this division of authority is known as federalism. The federal government possesses much power than state but also restricted in terms of power by the constitution. Under the supremacy clause of the Constitution, federal law is supreme over state law. State or local laws that conflict with the constitution or federal statutory laws are premeditated.
3. Personal Liberty protection: This function of the US constitution is work as security to its citizens.
4. Permanent Protections of a constitution: This function is similar to the above function as it protects the citizens from the dictatorial power of the government. It gives safety to the minorities from easily taking their rights and etc.