The correct answer is B. Venice
Explanation
Venice was one of the first city-states in Italy as it became a stated city around the 12th century, along with Genoa, Amalfi, and Pisa. However, due to its location on the Adriatic Sea Venice had important power related to trade and navy, due to this Venice develops into one of the most important trade cities of the time as the Adriatic Sea allowed Venice merchant to take different products to different places, especially to islands in the Mediterranean Sea. Also, from the cities (options) of the list, Venice is the only one that locates in the Adriatic Sea in northeastern Italy, while Florence, Genoa, and Milan are located in the northwest and closer to the Tyrrhenian Sea.
