Answer: I think the answer is C
Explanation: West Berlin shows it.
For PLATO:
Maya: Created hieroglyphic writing system
Developed the accurate calendar systems
Constructed Chichen Itza
Aztec: Built Tenochtitlan
Sustained 20mil population
Grew floating gardens
Answer:
A few are Top inventions and technical innovations of World War 2.
Radio navigation and landing.
Penicillin, synthetic rubber and oil, and Radar.
V-2 (space travel) and jet engines.
Nuclear power and computers.
Explanation:
Majority of people worked in farming. So I would say C farming