Discussion

Explanation:

The second paragraph states, “The facilities benefit is dubious at best for buildings such as velodromes or natatoriums and problematic for 100,000- seat capacity Olympic stadiums” … because later they are “doomed to near vacancy.” “Today, the Bird’s Nest in Beijing sits virtually empty and the Olympic stadium in Sydney costs some $30 million a year to operate.” Option 1 is correct. The reason for the facilities not being used is, as the option correctly states, their scale, and the cost of operating them. Retain option 1.
Option 2 is incorrect. The essay does not say that their sustained use is not possible because of their location. Eliminate option 2.
Option 3 is incorrect. The passage implies that their adaptation for future use pose problems because of their scale and maintenance costs. The implication is not that the authorities do not do so. Eliminate option 3.
Option 4 is incorrect. Though the competition makes it impossible for authorities to plan properly, there is no suggestion that the facilities become outdated because of hurried planning. Eliminate option 4.
Hence, the correct answer is option 1.

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