C. They made a treaty with China to explore the area
The Comstock Lode
The Comstock Lode is similar to the California Gold Rush, because of the golden discoveries they found (gold, of course). The Comstock Lode happened in Montana, Colorado, and Arizona, and all of this chunks of gold made this nation (United Sates) one of the most wealthiest! The gold and silver's value was 1 billion 2.5 million dollars in gold and silver, that's a lot of gold and silver, ain't it? This is one of the oldest mineral strikes, also called "The Granddaddy of them all."
(I made a paragraph of my own, but my source is: www.truewestmagazine.com/ten-events-that-shaped-the-west/
The correct answer here is B. that is the second option.
The conservation movement is a movement with the goal of protecting the nature, both flora and fauna and their habitats for the generations to come and enjoy. The conservation movement in contrasts to more traditional environmental movements mostly in the US seeks to protect nature but in order for it to be available for use sustainable use by the population. They are protecting the nature in order to keep using the natural resources.
A suicidal action in order to harm the enemy. Kamikaze soldiers are prepared to give up their lives for their cause, often due to a belief that they will be honored in the afterlife because of it.