The answer is: B.Individuals mined all of the gold, then the silver.
At that time, precious metal such as gold and silver were seen as the commodities that provide largest amount of wealth in shortest period of time. (very similar to owning a website during the dot.com bubble in 1995)
This cause individuals who live in that time period to make heavy efforts to mine all of the gold and silver that available near them.
Answer:
Martin Luther King Jr. was a leader in the Civil Rights Movement for the African-American. He said this quote above mentioned in the question because he wanted the public to listen to his speech as he stands there as a religious figure who is trustworthy, respected. He uses an example of ethos to convince people for the cause.
It would be a two days walk
A is a soldier that it hired for pay by a foreign state is often referred to as a "mercenary" since they are simply hired to help the state in question carry out military objectives.