Bunuel
A company that invests the necessary infrastructure in a large untapped diamond mine can reap as much as 700% profit in the first year. Some of the largest untapped diamond mines in the world are in the nation of Shagoca. Therefore, the American company that brokers a deal in the capital Conkin that allows it to put the necessary infrastructure in place at those mines stands to reap tremendous profits.
Which of the following, if true, most helps to explain why American companies are not eager to invest in infrastructure necessarily for diamond mining in Shagoca?
(A) The diamond mines in Shagoca are located close to population centers, which would allow for easy transport
(B) Diamond mining in climates closer to the equator, such as that in Shagoca, is much easier than diamond mining in regions where the soil is frozen most of the year
(C) In certain states in Shagoca, profit from diamond mining is as heavily taxed as it is in the United States
(D) A minority of the traders buying the diamonds will be citizens of Shagoca.
(E) The fifteen-year-old civil war in Shagoca has caused significant setbacks for many foreign investments.
OFFICIAL EXPLANATION
This sounds like situation with a possibility of huge profits. There must be something we are missing to explain why American companies are not eager to invest here.
(E) is the credited answer. If there's been a civil war for 15 years, this sounds like it's not going to resolve any time soon. War = potential destruction of infrastructure as well as loss of life. Any company going into build a diamond mine could lose the sum total of their initial outlay in one well-placed bomb, losing several employees in the process! That certainly sounds like something that would make a company reluctant to invest in Shagoca.
(A) & (B) do the opposite of what we want: they both provide explanations of why the situation would be more profitable, which does not explain why companies would not want to invest there.
(C) is weak: true, no one likes paying taxes, but if you can make 700% profits on your initial investment, then taxes are not a huge concern. This, in and of itself, would not explain the reluctance of companies.
(D) is strangely irrelevant: diamonds always have buyers worldwide, and transport costs for diamonds are not significant. If some of the buyers are actually citizens of Shagoca, this makes no difference at all in how profitable these investments would be.