Option A - INCORRECT.
The first is a fact that, but it is not the cause of further occurrences like the increase in museum; meanwhile the second is a fact which clarifies the presumed non existence of the first due to some circumstance that may occur in future.
Option B - INCORRECT.
The first is a piece of evidence that is dependent on following pieces of evidence which is the increase in museum and rise in the interest of collectors in Eastern Asia; while the second is a prediction which limits the scope of the first. That is, the possibility of the growth of the market is unrealistic.
Option C - INCORRECT.
This option is not in concordance with the argument.The first is a fact that in turn has caused other facts to come into effect; the second is not a conclusion but a prediction deduced from both the first and other facts that was not indicated in the argument.
Option D - CORRECT.
The first is a fact which resulted from following facts; but the second is a premise which weighs in assumption base of possibility of similar occurrence from previous experience which has been compared with the first fact. This option is best suitable to explain the two bold faces because, looking at the growth in civilization and enlightenment of the people, the rate at which their clamor for old generational artiste has been reduced due to the increase in new generational artiste.
Option E - INCORRECT.
The first is a fact brought about by other facts; but the second is not the conclusion of the argument it is just a prediction.