Plants are being acquired by foreigners.
Politician's justification: foreign investors, opportunistically exploiting a recent fall in the value of the Arundian currency, were able to buy Arundian assets at less than their true value. (foreign investors bought these plants at less than true value due to fall in currency)
Politicians' plan: Stop this buying.
What will cast doubt on the politician's justification?
What justification? that foreign investors bought these plants at less than true value due to fall in currency
(A) The Arundian government originally welcomed the fall in the value of the Arundian currency because the fall made Arundian exports more competitive on international markets
What benefits the country had due to fall in currency is irrelevant. The logic is that the country is getting hurt because of the fall in this case and that needs to be stopped. Fair enough.
If a certain phenomenon brings in some good and some bad, you will not accept the bad because of the good, right? You will try to mitigate the bad. Say strong northerly winds bring in rain (which is much needed in the region) but also cause destruction of trees. If the govt suggests reinforcing the boundary, it is justified. We will try to mitigate the ill effect even if we are happy about some good it is bringing in.
(B) Foreign investors who acquired manufacturing plants generally did so with no intention of keeping and running those plants over the long term.
Not the point of the argument. We need to question the justification - are the foreigners buying at less than true value due to fall in currency?
(C) Without the recent fall in the value of the Arundian currency, many of the Arundian assets bought by foreign investors would have been beyond the financial reach of those investors.
Whether the investors would have bought otherwise is irrelevant. The point is are they now buying at less than true value?
(D) In Concordia, a country broadly similar to Arundia, the share of manufacturing assets that is foreign-controlled is 60 percent higher than it is in Arundia.
Irrelevant.
(E) The true value of an investment is determined by the value of the profits from it, and the low value of the Arundian currency has depressed the value of any profits earned by foreign investors from Arundian assets.
This tells us that due to the weakening of the currency, the true value has also weakened. So the true value is now lower. So the fall incurrence has impacted both the price and the true value. Hence, now we cannot say that the foreigners are buying at less than true value.
Answer (E)