carcass wrote:
In North America there has been an explosion of public interest in, and enjoyment of, opera over the last three decades. The evidence of this explosion is that of the 70 or so professional opera companies currently active in North America, 45 were founded over the course of the last 30 years.
The reasoning above assumes which one of the following?
(A) All of the 70 professional opera companies are commercially viable options.
(B) There were fewer than 45 professional opera companies that
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