请教一题！

bigmouse

The recent surge in the number of airplane flights has clogged the nation’s air-traffic control system, to lead to 55 percent more delays at airports, and prompts fears among some officials that safety is being compromised.
(A) to lead to 55 percent more delays at airports, and prompts
(B) leading to 55 percent more delay at airports and prompting
(C) to lead to a 55 percent increase in delay at airports and prompt
(D) to lead to an increase of 55 percent in delays at airports, and prompted
(E) leading to a 55-percent increase in delays at airports and prompting
answer:E，B为什么不对

八戒

55 percent more

有歧义，究竟是航班班数的delay还是航班起飞时间的delay！

bigmouse

谢谢啦，八戒！