Over the past decade, the total market value of entertainment

Over the past decade, the total market value of entertainment properties in Romanshorn has steadily declined. This slump led to a cascading effect in that the overall figure on which the city's entertainment tax is based, the assessed value of the city's entertainment properties, has also declined. Nevertheless, the percentage of assessed value that was paid as entertainment taxes to the city did not change from year to year during this period. Romanshorn will soon require entertainment property owners to pay a higher percentage of the assessed value of their earnings as entertainment tax.

The information above most strongly supports which of the following?
-- Given this question, we need an inference about the information provided.
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A. The percentage of Romanshorn's yearly revenue that comes from money collected in entertainment taxes has steadily declined over the past decade. -- No way of knowing if this is accurate, or if the percentage has gone down.

B. The amount of revenue that Romanshorn collected from entertainment taxes was lower last year than it was decade ago. -- Value has gone down on the property -- tax remains the same -- result: less money. Answer!

C. Money collected from entertainment taxes provided most of Romanshorn's revenue during the past decade -- This is never mentioned, and is completely out of scope.

D. The percentage of Romanshorn's yearly revenue that comes from money collected in entertainment taxes did not change over the past decade. -- Percentage collected is something we cannot infer. What if every business and person had to pay more/less tax. This difference for everyone and every business would cause the percentage of revenue from entertainment to vary.
E. During the past decade, Romanshorn officials increased tax rates on other sources of revenue such as retail sales and business profits. -- Never mentioned in the passage, so it is out of scope.