When the dollar "rises" compared to other currencies, the group benefits the most is those who export products overseas.
Option A
Explanation:
When the value of dollar increases as compared to other countries, the people who export their products overseas benefit the most, because, when they export their product they get paid in dollars which obviously has more monetary value than their country's currency and hence they get more money in their hands in their country. The people who import their products from other country with dollar, they have to pay more for the product even though the price of the product in dollars has not changed.