91Ó°ÊÓ

Understand what the question is asking. The goal is to find the primary reason for the Founding Fathers dividing the federal government into three distinct branches.

Go through each of the four options and analyze their relevance to the question. (A) Unlimited power for the president is not consistent with checks and balances, nor with seeking to prevent any part of the government from becoming too powerful. (B) Encouraging competition among the members of the federal government seems like a secondary concern and not the main reason behind the tripartite government structure. (C) Basing their system of government on the British monarchy goes against the fundamental ideas of the American Revolution and the establishment of a democratic republic. (D) Ensuring checks and balances to prevent any one part of the government from becoming too powerful aligns well with the principles of the Founding Fathers and the Constitution.

Based on the analysis in Step 2, it is clear that option (D) is the most likely reason for the Founding Fathers dividing the federal government into three distinct branches. Therefore, the correct answer is: (D) They wanted to ensure that there were checks and balances to prevent any one part of the government from becoming too powerful.