The high cost of production is severely limiting which operas are available to the public. These costs necessitate reliance on large corporate sponsors, who in return demand that only the most famous operas be produced. Determining which operas will be produced should rest only with ticket purchasers at the box office, not from individuals, then the public will be able to see less famous operas.
What this question is testing
Conclusion
The author wants to ditch the big corporate sponsors so opera companies can produce more obscure operas.
Evidence
The corporate sponsors are the ones forcing only-the-greatest-hits programming.
Evaluate
The author treats corporate demands as the only thing standing in the way of obscure operas. But there is a quieter possibility: famous operas might be the only ones that bring in enough ticket sales and donations to pay for themselves. If that's true, cutting the corporate money doesn't free smaller operas — it just shrinks the budget so much that only famous operas remain affordable.
Goal
The right answer will show that without corporate sponsors, opera companies still couldn't afford to produce anything beyond the famous operas.
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