As in B, can I supplement the sentence like this: doubling (the number of people flying first class on domestic flights) of the increase in the previous year? And this sentence is illogical?
number 的 rose 带来 double,应该用doubling作状语修饰rose,排除CDE,剩AB B中that指代有问题,并且 increase in搭配意思为“...方面的增长” 所以increase in the previous year表示 the previous year本身的increase不合逻辑。排除B