You didn't put the options... but the trail of tears was the forced movement of Indians from the Mississippi River to present day Oaklahoma
B because since this means that humans no longer have to travel, since they can do things like farm on a regular basis.
Extra-
Choice A would be incorrect because it's the opposite of what the ability to acquire food on a regular basis. They can control and alter the environment to do things like plant. Choices C and D have nothing to do with the ability to acquire food on Ba regular basis.
The Irish Republican Army fighting for the unification of a whole Ireland.
