84. One legacy of Madison Avenue's recent campaign to appeal to people fifty years old and over is the realization that as a person ages. their concerns change as well.
(A) the realization that as a person ages, their
(B) the realization that as people age, their
(C) to realize that when a person ages, his or her
(D) to realize that when people age, their
(E) realizing that as people age, their
这里that从句是做什么成分?突然有点晕..谢谢~
哦~是同位语么?
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