United States have over 500 million people living
I would believe the answer to be (a) since the effect has to do with wind force movement
There would be two answers for this question. For the reasons that it could give people an idea of what cause the regional conflict taking place and it also influences the region's political and economic decisions. Furthermore, understanding the people on both of these regions would give us a keen understanding on how they are different from us.
For a wind farm to be effective it needs to be in a place where there
is a wind speed of at least 4.5 m/s or greater, ideally in a location that has a
near constant flow of non-turbulent wind throughout the year with the least likelihood
of sudden powerful bursts of wind. The location should also has an access to electric
power transmission.