Answer:
A. Examples of his many insightful talents
Explanation:
Leonardo da Vinci was very fascinated about anatomical studies and worked on dissection at hospital. In his painting, we can see the use of anatomical study very well. Also, from his sketch, we get to now about the first ever design of a helicopter. That's why option A describes da Vinci the best.
Rome
They both have Senates which aid the main position (Consul in Rome, President in U.S.).
The answer that would make the most sense is bipolar disorder.
The United States, Great Britain, and the Soviet Union joined forces to fight the Nazi Germany, Fascist Italy, and Imperial Japan. The United States entered the war. The war ended in a treaty and Germany had to finish paying WWI era repairs.<span />
The correct answer is B) No historians have written about the era that preceded the ancient era.
The option that could be a reason why humans know very little about the time before the ancient era is that no historians have written about the era that preceded the ancient era.
We are referring to what is cold prehistory, the time where events occurred before the existence of written records. Historians write what they can research or interpret written records from the past such as the clay tablets of Sumer-Mesopotamia or the Egyptians glyphs due to the Rosetta Stone. But without written records, all is speculation, that is why humans know so little about prehistory.