[The average length of tim...] Between 1975 and 1985, nursing-home occupancy rates averaged 87 percent of capacity, while admission

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Between 1975 and 1985, nursing-home occupancy rates averaged 87 percent of capacity, while admission rates remained constant, at an average of 95 admissions per 1,000 beds per year. Between 1985 and 1988, however, occupancy rates rose to an average of 92 percent of capacity, while admission rates declined to 81 per 1,000 beds per year.
If the statements above are true, which of the following conclusions can be most properly drawn?

The average length of time nursing-home residents stayed in nursing homes increased between 1985 and 1988.

The proportion of older people living in nursing homes was greater in 1988 than in 1975.

Nursing home admission rates tend to decline whenever occupancy rates rise.

Nursing homes built prior to 1985 generally had fewer beds than did nursing homes built between 1985 and 1988.

The more beds a nursing home has, the higher its occupancy rate is likely to be.

Explanation:
Between 1985 and 1988, nursing home occupancy rates rose although admission rates declined. Choice A receives support from these facts since it would be a basis fro an adequate account of how they arose. Because it is the only choice that receives support, A is therefore the best answer.
Without information about the population of older people, nothing can be concluded about percentages in nursing homes; thus, choice B is incorrect. Since there is nothing to indicate whether the development that took place between 1985 and 1988 was an unusual development or a common one, choice C receives no support. No information about numbers of beds is provided, so neither choice D nor choice E is correct.

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