Middle line is the answer
Whitney's invention made upland short cotton into a profitable crop, which strengthened the economic foundation of slavery in the United States.
Despite the social and economic impact of his invention, Whitney lost many profits in legal battles over patent infringement for the cotton gin. Thereafter, he turned his attention into securing contracts with the government in the manufacture of muskets for the newly formed United States Army. He continued making arms and inventing until his death in 1825.
Answer: Try The first One?
Explanation:
The first answer is completely incorrect. The right answer is C- the Japanese attack on Pearl Harbor. Russia didn't even invade Poland.
