Thhe name of the weapon is the Greeks Fire
A martyr is someone who defends something or someone with its life. If you watch Steven Universe, a good example of this is lapis.
It was before the era of railways hence waterways were critical factor. They determined the population centers access to trade. Examples rivers (New Orleans, Cincinnati), Great Lakes (Chicago, Detroit), canals (Milwaukee) and obviously sea port cities (New York)
Answer is C......................
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