Answer:
Japan
Explanation:
Their territorial expansion was in the pacific ocean
The answer is D
A good way to remember this is to think about America before or pre-columbus, who came to the americas in 1492.
Civilizations connected through trade first via trading tools with other nearby communities then it evolved into trading more goods such as foods crops and weapons. Then with boats this allowed technology and customs to travel for example Egyptian sculptures influencing Greek art work and the silk road. This helped humanity since a example of isolation was japan until the Miji Restoration. Humanity needs trade in order to communicate and get things they cannot make in their region of the world.
D. An increase in the yield of crops for less-developed countries
