关于两个the rising of 的疑惑

紫皮的OG SC

8. The rising of costs of data-processing operations at many financial institutions has created a growing opportunity for independent companies to provide these services more efficiently and at lower cost．

(A)  The rising of costs

(B)  Rising costs

(C)  The rising cost

(D)  Because the rising cost

(E)  Because of rising costs

答案说The rising of costs is wordy and awkward．

但是

17. In the mid-1960’s a newly installed radar warning system mistook the rising of the moon as a massive missile attack by the Soviets．

(A)  rising of the moon as a massive missile attack by the Soviets

(B)  rising of the moon for a massive Soviet missile attack

(C)  moon rising to a massive missile attack by the Soviets

(D)  moon as it was rising for a massive Soviet missile attack

(E)  rise of the moon as a massive Soviet missile attack

答案选的是B,这里也用了the rising of ,这里的the rising of 为什么就没有上面那个题的毛病啊？

17. In the mid-1960’s a newly installed radar warning system mistook the rising of the moon as a massive missile attack by the Soviets．

(A)  rising of the moon as a massive missile attack by the Soviets

(B)  rising of the moon for a massive Soviet missile attack

(C)  moon rising to a massive missile attack by the Soviets

(D)  moon as it was rising for a massive Soviet missile attack

(E)  rise of the moon as a massive Soviet missile attack

答案选的是B,这里也用了the rising of ,这里的the rising of 为什么就没有上面那个题的毛病啊？