Between 1975 and 1985, nursing-homeoccupancy rates averaged 87 percent of capacity, while admission rates remainedconstant, at an average of 95 admissions per 1,000 beds per year. Between 1985and 1988, however, occupancy rates rose to an average of 92 percent ofcapacity, while admission rates declined to 81 per 1,000 beds per year.

If the statements above are true, which ofthe following conclusions can be most properly drawn?

(A) The averagelength of time nursing-home residents stayed in nursing homes increased between1985 and 1988.

(B) Theproportion of older people living in nursing homes was greater in 1988 than in1975.

(C) Nursing homeadmission rates tend to decline whenever occupancy rates rise.

(D) Nursinghomes built prior to 1985 generally had fewer beds than did nursing homes builtbetween 1985 and 1988.（A）

(E) The morebeds a nursing home has, the higher its occupancy rate is likely to be.

为什么B不对呢，我的想法是在admission rate 下降的情况下只有总接受人数升高才会使得occupancy rate升高啊

虽然我觉得A也是一种合理的解释，但是为什么B不行呢