Answer:
I want to say Neon Led would be your answer
I can say that the "The Oath of the Horatii" which is by Jacques-Louis David shows that heroic actions were SIGNS or MARKS OF MASCULINITY. "The Oath of the Horatii" is actually a painting made by Jacques-Louis David, a French artist and this was done in the year 1784. Hope this helps.
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Im not fully sure, but I think that it is a drawing by leonardo da vinci, and it was one of his ideas for a thing kind of like a helicopter.
Im pretty sure the answer A
Hierarchical scale is the answer