more than应用庖丁解牛法比较时的困惑

AnneliseLin

Retail sales rose 0.8 of 1 percent in August, intensifying expectations that personal spending in the July-September quarter more than doubled that of the 1.4 percent growth rate in personal spending for the previous quarter.

A  that personal spending in the July–September quarter more than doubled that of
B  that personal spending in the July–September quarter would more than double
C  of personal spending in the July–September quarter, that it more than doubled
D  of personal spending in the July–September quarter more than doubling that of
E  of personal spending in the July–September quarter, that it would more than double that of

正确答案是B，疑惑在于比较
请问这里的比较是主语比较吗？
究竟是personal spending和什么在比较？
personal spending more than double growth rate这个怎么也讲不通呀，不应该是personal spending more than double personal spending吗？在语义上又如何理解呢？

AnneliseLin

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AnneliseLin

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