Well I think the answer might be D.
Tariff is the correct answer
Because of unsolved issues. Like establishing colonial empires such as Germany concerned with their land.
D. is the best answer i am pretty sure it is D. bc it is to comapre
The correct answer is boll weevil
Boll Weevils are a small beetle that feeds on grains, such as wheat and rice. There are several types of weevils. And it is "greatest enemy" for cotton because it can invade the pantry or a plantation and make an infestation occurs.