Answer:
Amerigo Vespucci, is the right answer.
Step-by-step explanation:
The United States of America generally known as the USA is a country which is comprised of 50 states, a federal region, five principal self-governing townships, and various settlements. Martin Waldseemüller, a German cartographer designed a world map in the year 1507 on which he represented the countries of the Western Hemisphere as America. The name he gave to pay honour to Amerigo Vespucci, an explorer and cartographer from Italy.