At its peak the Inca city of Cuzco had between 100,000 and 300,000 people.
Answer:
I have re uploaded the map with the areas explored by each country.
Spain - we can see that Spain explored the totality of Mexico, and that is why Mexico is still a Spanish-Speaking country. Spain also explored the Southwestern United States (Texas, New Mexico, Arizona, Nevada and California) which used to be part of Mexico as well. It also explored Florida and Cuba.
France - France colonial center was what is now Quebec, and that is why this Canadian region still speaks French. The French also explored the Midwest and the Mississippi Valley, and founded the city of New Orleans.
England - The English explored the East Coast, where the thirteen original colonies were founded. Despite being the smallest geographical area explored compared to the other two countries, it was the most succesful because it became the most populated.
The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada.
That is FREY <the right answer is A frey