Answer :
Final answer:
The famous brothers who went to Harvard and became millionaires after starting businesses together are the Winklevoss Twins. Known for their lawsuit against Mark Zuckerberg over the creation of his software application, they invested their settlement wisely and became successful entrepreneurs. Option D.
Explanation:
The answer to the question about the famous brothers who went to Harvard, are one year apart, and started businesses together, becoming millionaires is: The Winklevoss Twins.
Cameron and Tyler Winklevoss attended Harvard University and competed in rowing. They became widely known for their legal battle with Mark Zuckerberg, claiming he stole their ConnectU idea.
Post the lawsuit, they invested their settlement money in various ventures, notably including a large investment in Bitcoin, which substantially increased their wealth.
Unlike the Wright Brothers who were aviation pioneers, the Koch Brothers who run a massive industrial empire and have significant political influence, or the Marx Brothers who are known for their entertainment legacy and have no relation to Harvard or business ventures.
The Winklevoss Twins fit the description provided in the question as individuals who went to an Ivy League university, started businesses together, and became very successful financially as a result.
Hence, the correct answer is: Option D.