Answer: The French
Explanation: Britain challenged France for possession of North America in the French and Indian War of 1756-1763. The British defeated the French and reigned supreme “over” North America. The countries of Spain, England, and France fought for dominance in the new world. The French and Indian War was the biggest manifestation of the struggle. Spain was the first country to occupy the New World and dominate by creating their own colonies before anyone else.
Thhe answer is your last option "led to decline in racist attitudes towards African American and imigrants"
