Why did the Framers insist on the separation of powers in the Constitution? (in your own words, please don't plagiarize)

Write your response in three to four complete sentences.
(please help me out this is overdue)

The separation of powers was done to prevent one arm or organ of government from becoming too powerful.

the us hoped to prevent any nations from leaning towards soviet union-based communism. the containment policy was established in hopes of keeping communism from spreading to new places.

profound political, administrative, and social changes in the british isles.