Answer: Influences the price of exports and imports
Explanation:
The value of the exchange rate of a nation's currency can impact how much the country imports or exports which will affect its balance of trade.
For instance, if a country's currency becomes stronger, it would make its exports more expensive (as these are quoted in the domestic currency) which would lead to less of its exports being sold. At the same time however, imports will become cheaper to the people of this country since their currency is stronger. They will therefore import more.
The net effect is that exports decrease and imports increase thereby making the balance of trade worse off. This situation is reversed when the currency becomes weaker.
Having read the excerpt, the answer to the question is letter b. Millay finds beauty in the autumn world but resents the rebirth of spring because she sees death and sorrow everywhere. The other choices given were not that relevant compared to what is chosen.