劉振民語法E6-9

[stamps]

Violence in the stands at soccer matches has gotten so pronounced in several European countries that some stadiums have adopted new rules that aim to identify fans of visiting teams and that seat them in a separate area.
(A) to identify fans of visiting teams and that seat them
(B) to identify fans of visiting teams and seat them
(C) to identify fans of visiting teams for seating
(D) at identifying fans of visiting teams for seating
(E) at identifying fans of visiting teams and that seat them

Ans: B
劉振民的解答是說要用aim to do sth.的用法來排除D&E
但我查字典的結果,發現aim at與aim to都有用來表達目的的作用
為什麼這麼肯定就一定得用aim to 呢？ 不解....